The Number

21115

Twenty-One Thousand One Hundred and Fifteen

In Base 31 Untrigesimal Is

lu431

The numbers with a 31 subscript use Base 31 Untrigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21112
lu131
Twenty-One Thousand One Hundred and Twelve in Base 31 Untrigesimal
21113
lu231
Twenty-One Thousand One Hundred and Thirteen in Base 31 Untrigesimal
21114
lu331
Twenty-One Thousand One Hundred and Fourteen in Base 31 Untrigesimal
21116
lu531
Twenty-One Thousand One Hundred and Sixteen in Base 31 Untrigesimal
21117
lu631
Twenty-One Thousand One Hundred and Seventeen in Base 31 Untrigesimal
21118
lu731
Twenty-One Thousand One Hundred and Eightteen in Base 31 Untrigesimal

Scientific Notation

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

2.1115e4

Reciprocal

A number multiplied with its reciprocal is one.

0.001cmqs20jc17m31

The reciprocal of 21115 in Base 31 Untrigesimal.

Palindrome?

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

The number lu431 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 fifteen is a composite number with 8 total factors (including 1 and itself).   See primes in Base 31 Untrigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand one hundred and fifteen is a composite number with 8 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 fifteen has the following 3 prime factors:

5
531
Five in Base 31 Untrigesimal
41
1a31
Forty-One in Base 31 Untrigesimal
103
3a31
One Hundred and Three in Base 31 Untrigesimal

Prime Factorization

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

5311 · 1a311 · 3a311 = lu431

Base Conversions

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