The Number

21215

Twenty-One Thousand Two Hundred and Fifteen

In Base 31 Untrigesimal Is

m2b31

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

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

Nearby Numbers

Positive, nonzero integers within three units

21212
m2831
Twenty-One Thousand Two Hundred and Twelve in Base 31 Untrigesimal
21213
m2931
Twenty-One Thousand Two Hundred and Thirteen in Base 31 Untrigesimal
21214
m2a31
Twenty-One Thousand Two Hundred and Fourteen in Base 31 Untrigesimal
21216
m2c31
Twenty-One Thousand Two Hundred and Sixteen in Base 31 Untrigesimal
21217
m2d31
Twenty-One Thousand Two Hundred and Seventeen in Base 31 Untrigesimal
21218
m2e31
Twenty-One Thousand Two 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.

2.1215e4

Reciprocal

A number multiplied with its reciprocal is one.

0.001cgeo79njn0q31

The reciprocal of 21215 in Base 31 Untrigesimal.

Palindrome?

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

The number m2b31 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 two hundred and fifteen is a composite number with 4 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 two hundred and fifteen is a composite number with 4 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 two hundred and fifteen has the following 2 prime factors:

5
531
Five in Base 31 Untrigesimal
4243
4cr31
Four Thousand Two Hundred and Forty-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 · 4cr311 = m2b31

Base Conversions

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