70,000

Short description: Natural number

← 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	[math]\displaystyle{ \stackrel{\zeta}{\Mu} }[/math]
Roman numeral	LXX
Binary	100010001011100002
Ternary	101200001213
Quaternary	1010113004
Quinary	42200005
Senary	13000246
Octal	2105608
Duodecimal	3461412
Hexadecimal	1117016
Vigesimal	8F0020
Base 36	1I0G36

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

Selected numbers in the range 70001–79999

70001 to 70999

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

71000 to 71999

• 71656 = pentagonal pyramidal number

73000 to 73999

• 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

74000 to 74999

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

75000 to 75999

• 75025 = Fibonacci number, Markov number
• 75361 = Carmichael number

76000 to 76999

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

77000 to 77999

• 77777 = repdigit
• 77778 = Kaprekar number

78000 to 78999

• 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

79000 to 79999

• 79507 = 43³

Primes

There are 902 prime numbers between 70000 and 80000.