80,000 (eighty thousand) is the
natural number
In mathematics, the natural numbers are those numbers used for counting (as in "there are ''six'' coins on the table") and ordering (as in "this is the ''third'' largest city in the country").
Numbers used for counting are called ''Cardinal n ...
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
* 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
Time to live (TTL) or hop limit is a mechanism which limits the lifespan or lifetime of data in a computer or network. TTL may be implemented as a counter or timestamp attached to or embedded in the data. Once the prescribed event count or timesp ...
* 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
80,000 Hours is a London-based nonprofit organisation that conducts research on which careers have the largest positive social impact and provides career advice based on that research. It provides this advice on their website and podcast, and ...
, a British career advisory service
References
{{Integers, 10
80000