80,000

← 79999 80000 80001 →
List of numbers — Integers ← 0 10k 20k 30k 40k 50k 60k 70k 80k 90k →
Cardinal	eighty thousand
Ordinal	80000th (eighty thousandth)
Factorization	27 × 54
Greek numeral	${\displaystyle {\stackrel {\eta }{\mathrm {M} }}}$
Roman numeral	LXXX
Binary	100111000100000002
Ternary	110012012223
Octal	2342008
Duodecimal	3A36812
Hexadecimal	1388016

80,000 (eighty thousand) is the natural number after 79,999 and before 80,001.

Selected numbers in the range 80,000–89,999

• 80,286 = model number of the Intel 80286 chip
• 80,386 = model number of the Intel 80386 chip
• 82,467 = number of square (0,1)-matrices without zero rows and with exactly 6 entries equal to 1^[1]
• 80,486 = model number of the Intel 80486 chip
• 80,782 = Pell number P₁₄^[2]
• 82,000 = the only currently known number greater than 1 that can be written in bases from 2 through 5 using only 0s and 1s.^[3][4]
• 82,025 = number of primes ${\displaystyle \leq 2^{20}}$.^[5]
• 82,656 = Kaprekar number: 82656² = 6832014336; 68320 + 14336 = 82656^[6]
• 82,944 = 3-smooth number: 2¹⁰ × 3⁴
• 83,097 = Riordan number
• 83,160 = highly composite number^[7]
• 83,357 = Friedman prime^[8]
• 83,521 = 17⁴
• 84,187 – number of parallelogram polyominoes with 15 cells.^[9]
• 85,085 = product of five consecutive primes: 5 × 7 × 11 × 13 × 17
• 85,184 = 44³
• 86,400 = seconds in a day: 24 × 60 × 60 and common DNS default time to live
• 87,360 = unitary perfect number^[10]
• 88,888 = repdigit

See also

• 80,000 Hours, a British career advisory service

References