70,000

← 69999 70000 70001 →
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Cardinal	seventy thousand
Ordinal	70000th (seventy thousandth)
Factorization	24 × 54 × 7
Greek numeral	${\displaystyle {\stackrel {\zeta }{\mathrm {M} }}}$
Roman numeral	LXX
Binary	100010001011100002
Ternary	101200001213
Senary	13000246
Octal	2105608
Duodecimal	3461412
Hexadecimal	1117016

70,000 (seventy thousand) is the natural number that comes after 69,999 and before 70,001. It is a round number.

• 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,^[1] triangular number,^[2] and hexagonal number.^[3]

• 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
• 73712 = number of n-Queens Problem solutions for n = 13
• 73728 = 3-smooth number

• 74088 = 42³ = 2³ * 3³ * 7³
• 74353 = Friedman prime
• 74897 = Friedman prime

• 75025 = Fibonacci number,^[4] Markov number^[5]
• 75175 = number of partitions of 44 ^[6]
• 75361 = Carmichael number^[7]

• 76084 = amicable number with 63020
• 76424 = tetranacci number^[8]

• 77777 = repdigit
• 77778 = Kaprekar number^[9]

• 78125 = 5⁷
• 78163 = Friedman prime
• 78498 = the number of primes under 1,000,000
• 78557 = conjectured to be the smallest Sierpiński number
• 78732 = 3-smooth number

• 79507 = 43³

There are 902 prime numbers between 70000 and 80000.