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
* 80,486 = model number of the
Intel 80486
The Intel 486, officially named i486 and also known as 80486, is a microprocessor. It is a higher-performance follow-up to the Intel 386. The i486 was introduced in 1989. It represents the fourth generation of binary compatible CPUs following the ...
chip
* 80,782 =
Pell number ''P''
14
* 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.
* 82,025 = number of primes
.
* 82,656 =
Kaprekar number: 82656
2 = 6832014336; 68320 + 14336 = 82656
* 82,944 = 3-
smooth number: 2
10 × 3
4
* 83,097 =
Riordan number
* 83,160 =
highly composite number
__FORCETOC__
A highly composite number is a positive integer with more divisors than any smaller positive integer has. The related concept of largely composite number refers to a positive integer which has at least as many divisors as any smaller ...
* 83,357 =
Friedman prime A Friedman number is an integer, which represented in a given numeral system, is the result of a non-trivial expression using all its own digits in combination with any of the four basic arithmetic operators (+, −, ×, ÷), additive inverses, ...
* 83,521 = 17
4
* 84,187 – number of parallelogram polyominoes with 15 cells.
* 85,085 = product of five consecutive primes: 5 × 7 × 11 × 13 × 17
* 85,184 = 44
3
* 86,400 =
second
The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds ...
s in a
day
A day is the time period of a full rotation of the Earth with respect to the Sun. On average, this is 24 hours, 1440 minutes, or 86,400 seconds. In everyday life, the word "day" often refers to a solar day, which is the length between two so ...
: 24 × 60 × 60 and common DNS default
time to live
* 87,360 =
unitary perfect number
A unitary perfect number is an integer which is the sum of its positive proper unitary divisors, not including the number itself (a divisor ''d'' of a number ''n'' is a unitary divisor if ''d'' and ''n''/''d'' share no common factors). Some perfect ...
* 88,888 =
repdigit
See also
*
80,000 Hours, a British career advisory service
References
{{Integers, 10
80000