The Number

81500

Eighty-One Thousand Five Hundred

In Base 25 Pentavigesimal Is

55a025

The numbers with a 25 subscript use Base 25 Pentavigesimal notation.

For more familiar numbers: See Eighty-One Thousand Five Hundred in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

81497
559m25
Eighty-One Thousand Four Hundred and Ninety-Seven in Base 25 Pentavigesimal
81498
559n25
Eighty-One Thousand Four Hundred and Ninety-Eight in Base 25 Pentavigesimal
81499
559o25
Eighty-One Thousand Four Hundred and Ninety-Nine in Base 25 Pentavigesimal
81501
55a125
Eighty-One Thousand Five Hundred and One in Base 25 Pentavigesimal
81502
55a225
Eighty-One Thousand Five Hundred and Two in Base 25 Pentavigesimal
81503
55a325
Eighty-One Thousand Five Hundred and Three in Base 25 Pentavigesimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

8.1500e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004jkej1abh96325

The reciprocal of 81500 in Base 25 Pentavigesimal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 55a025 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Eighty-one thousand five hundred is a composite number with 24 total factors (including 1 and itself).   See primes in Base 25 Pentavigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand five hundred is a composite number with 24 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number eighty-one thousand five hundred has the following 3 prime factors:

2
225
Two in Base 25 Pentavigesimal
5
525
Five in Base 25 Pentavigesimal
163
6d25
One Hundred and Sixty-Three in Base 25 Pentavigesimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

2252 · 5253 · 6d251 = 55a025

Base Conversions

The number eighty-one thousand five hundred in 35 different bases