70,000

← 69999 70000 70001 →
List of numbers Integers ← 0 10k 20k 30k 40k 50k 60k 70k 80k 90k →
Cardinal	seventy thousand
Ordinal	70000th (seventy thousandth)
Factorization	24 × 54 × 7
Greek numeral	${\displaystyle {\stackrel {\zeta }{\mathrm {M} }}}$
Roman numeral	LXX, lxx
Binary	100010001011100002
Ternary	101200001213
Senary	13000246
Octal	2105608
Duodecimal	3461412
Hexadecimal	1117016

70,000 (seventy thousand) is the natural number following 69,999 and preceding 70,001. It is a round number.

Selected numbers in the range 70001–79999

• 70030 = largest number of digits of π that have been recited from memory

• 71656 = pentagonal pyramidal number

• 72771 = 3 x 127 x 191, is a sphenic number, triangular number, and hexagonal number.

• 73296 = is the smallest number n, for which n−3, n−2, n−1, n+1, n+2, n+3 are all Sphenic number.
• 73440 = 15 × 16 × 17 × 18 (can also be written as 18! ÷ 14! or ⁠18!/14!⁠)
• 73712 = number of n-Queens Problem solutions for n = 13
• 73728 = 3-smooth number

• 74353 = Friedman prime
• 74897 = Friedman prime

• 75025 = Fibonacci number, Markov number
• 75175 = number of partitions of 44
• 75361 = Carmichael number

• 76084 = amicable number with 63020
• 76424 = tetranacci number

• 77778 = Kaprekar number

• 78163 = Friedman prime
• 78498 = the number of primes under 1,000,000
• 78557 = conjectured to be the smallest Sierpiński number
• 78732 = 3-smooth number

References