The Number

215131

Two Hundred and Fifteen Thousand One Hundred and Thirty-One

In Base 21 Unovigesimal Is

124h721

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

215128
124h421
Two Hundred and Fifteen Thousand One Hundred and Twenty-Eight in Base 21 Unovigesimal
215129
124h521
Two Hundred and Fifteen Thousand One Hundred and Twenty-Nine in Base 21 Unovigesimal
215130
124h621
Two Hundred and Fifteen Thousand One Hundred and Thirty in Base 21 Unovigesimal
215132
124h821
Two Hundred and Fifteen Thousand One Hundred and Thirty-Two in Base 21 Unovigesimal
215133
124h921
Two Hundred and Fifteen Thousand One Hundred and Thirty-Three in Base 21 Unovigesimal
215134
124ha21
Two Hundred and Fifteen Thousand One Hundred and Thirty-Four in Base 21 Unovigesimal

Scientific Notation

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

2.15131e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ike1347a0b4f21

The reciprocal of 215131 in Base 21 Unovigesimal.

Palindrome?

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

The number 124h721 is not a palindrome.

Not A Prime Number

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

Two hundred and fifteen thousand one hundred and thirty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two hundred and fifteen thousand one hundred and thirty-one 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 two hundred and fifteen thousand one hundred and thirty-one has the following 3 prime factors:

7
721
Seven in Base 21 Unovigesimal
73
3a21
Seventy-Three in Base 21 Unovigesimal
421
k121
Four Hundred and Twenty-One in Base 21 Unovigesimal

Prime Factorization

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

7211 · 3a211 · k1211 = 124h721

Base Conversions

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