← 60 61 62 63 64 65 66 67 68 69 → 59 (fifty-nine) is the natural number following 58 and preceding 60. ... 60 (sixty) is the natural number following 59 and preceding 61. ... 61 (sixty-one) is the natural number following 60 and preceding 62. ... 62 (sixty-two) is a natural number following 61 and preceding 63. ... Sixty-three is a natural number following 62 and preceding 64. ... 64 (sixty-four) is the natural number following 63 and preceding 65. ... 65 (sixty-five) is the natural number following 64 and preceding 66. ... 66 is the natural number following 65 and preceding 67. ... 67 (sixty-seven) is the natural number following 66 and preceding 68. ... 68 (sixty-eight) is the natural number following 67 and preceding 69 // Sixty-eight is a nontotient. ... Look up seventy in Wiktionary, the free dictionary. ... List of numbers — Integers This is a list of articles about numbers (not about numerals). ... The integers are commonly denoted by the above symbol. ... 0 10 20 30 40 50 60 70 80 90 → For other senses of this word, see zero or 0. ... This article is about the number 10. ... 20 (twenty) is the natural number following 19 and preceding 21. ... 30 (thirty) is the natural number following 29 and preceding 31. ... 40 (forty) is the natural number following 39 and preceding 41. ... 50 (fifty) is the number following 49 and preceding 51. ... 60 (sixty) is the natural number following 59 and preceding 61. ... Look up seventy in Wiktionary, the free dictionary. ... 80 (eighty) is the natural number following 79 and preceding 81. ... 90 (ninety) is the natural number preceded by 89 and followed by 91. ... 100 (one hundred) (the Roman numeral is C for centum) is the natural number following 99 and preceding 101. ...
Cardinal	69 sixty-nine
Ordinal	69th sixty-ninth
Numeral system	sexagesimal
Factorization
Divisors	1, 3, 23, 69
Roman numeral	LXIX
Binary	1000101
Octal	105
Duodecimal	59
Hexadecimal	45

69 (sixty-nine) is a number following 68 and preceding 70. Aleph-0, the smallest infinite cardinal In mathematics, cardinal numbers, or cardinals for short, are a generalized kind of number used to denote the size of a set, known as its cardinality. ... In set theory, ordinal, ordinal number, and transfinite ordinal number refer to a type of number introduced by Georg Cantor in 1897, to accommodate infinite sequences and to classify sets with certain kinds of order structures on them. ... This article is about different methods of expressing numbers with symbols. ... The sexagesimal (base-sixty) is a numeral system with sixty as the base. ... ... In mathematics, a divisor of an integer n, also called a factor of n, is an integer which evenly divides n without leaving a remainder. ... The system of Roman numerals is a numeral system originating in ancient Rome, and was adapted from Etruscan numerals. ... The binary numeral system, or base-2 number system, is a numeral system that represents numeric values using two symbols, usually 0 and 1. ... The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. ... The duodecimal (also known as base-12 or dozenal) system is a numeral system using twelve as its base. ... In mathematics and computer science, hexadecimal, base-16, or simply hex, is a numeral system with a radix, or base, of 16, usually written using the symbols 0–9 and A–F, or a–f. ... 68 (sixty-eight) is the natural number following 67 and preceding 69 // Sixty-eight is a nontotient. ... Look up seventy in Wiktionary, the free dictionary. ...

In mathematics

• Adding up the divisors of 1 through 9 gives 69.
• Because 69 has an odd number of 1s in its binary representation, it is sometimes called an "odious number"
• Of note is that 69³² = 6969007... and that 69² (4 761) and 69³ (328 509) uses every digit from 0-9.
• 69 is equal to 105 octal, while 105 is equal to 69 hexadecimal. This same property can be applied to all numbers from 64 to 69.
• 69 is a semiprime.
• On many handheld scientific and graphing calculators, the highest factorial that can be computed within memory limitations is 69! or 1.711224524*10⁹⁸.

In mathematics, a divisor of an integer n, also called a factor of n, is an integer which evenly divides n without leaving a remainder. ... This graphic demonstrates the repeating and complementary makeup of the Thue-Morse sequence. ... 105 (one hundred [and] five) is the natural number following 104 and preceding 106. ... The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. ... In mathematics and computer science, hexadecimal, base-16, or simply hex, is a numeral system with a radix, or base, of 16, usually written using the symbols 0–9 and A–F, or a–f. ... 64 (sixty-four) is the natural number following 63 and preceding 65. ... In mathematics, a semiprime (also called biprime or 2-almost prime, or pq number) is a natural number that is the product of two (not necessarily distinct) prime numbers. ... For other uses, see Calculator (disambiguation). ... For factorial rings in mathematics, see unique factorisation domain. ...

In science

• The atomic number of thulium, a lanthanide

See also: List of elements by atomic number In chemistry and physics, the atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom. ... General Name, Symbol, Number thulium, Tm, 69 Chemical series lanthanides Group, Period, Block ?, 6, f Appearance silvery gray Atomic mass 168. ...

Astronomy

• The Messier object M69 is a magnitude 9.0 globular cluster in the constellation Sagittarius.

The Messier objects are a set of astronomical objects catalogued by Charles Messier in his catalogue of Nebulae and Star Clusters first published in 1774. ... Globular Cluster M69 (also known as Messier Object 69, Messier 69, M69, or NGC 6637) is a globular cluster in the Sagittarius constellation. ... The apparent magnitude (m) of a star, planet or other heavenly body is a measure of its apparent brightness; that is, the amount of light received from the object. ... The Globular Cluster M80 in the constellation Scorpius is located about 28,000 light years from the Sun and contains hundreds of thousands of stars. ... This article is about the star grouping. ... For other uses, see Sagittarius. ...

In Sports

• In cricket, 69 is the number of the South African all-rounder Lance Klusener.

This article is about the sport. ... Lance Klusener (born on September 4, 1971 in Durban, South Africa) is a cricketer, more specifically an all-rounder. ...

Popular culture

• The number 69 is often considered to have sexual connotations due to the sex position of the same name where two persons of either same or differing sexes perform oral sex upon each other.
• The number 69 is also related to the now demolished Ungdomshuset in Copenhagen, Denmark.
• Thai film named Ruang Talok 69