The Number

21105

Twenty-One Thousand One Hundred and Five

In Base 25 Pentavigesimal Is

18j525

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

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

Nearby Numbers

Positive, nonzero integers within three units

21102
18j225
Twenty-One Thousand One Hundred and Two in Base 25 Pentavigesimal
21103
18j325
Twenty-One Thousand One Hundred and Three in Base 25 Pentavigesimal
21104
18j425
Twenty-One Thousand One Hundred and Four in Base 25 Pentavigesimal
21106
18j625
Twenty-One Thousand One Hundred and Six in Base 25 Pentavigesimal
21107
18j725
Twenty-One Thousand One Hundred and Seven in Base 25 Pentavigesimal
21108
18j825
Twenty-One Thousand One Hundred and Eight in Base 25 Pentavigesimal

Scientific Notation

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

2.1105e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000ichmf851m9dk25

The reciprocal of 21105 in Base 25 Pentavigesimal.

Palindrome?

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

The number 18j525 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand one hundred and five 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.

Twenty-one thousand one hundred and five 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 twenty-one thousand one hundred and five has the following 4 prime factors:

3
325
Three in Base 25 Pentavigesimal
5
525
Five in Base 25 Pentavigesimal
7
725
Seven in Base 25 Pentavigesimal
67
2h25
Sixty-Seven in Base 25 Pentavigesimal

Prime Factorization

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

3252 · 5251 · 7251 · 2h251 = 18j525

Base Conversions

The number twenty-one thousand one hundred and five in 35 different bases