The Number

231

Two Hundred and Thirty-One

In Base 21 Unovigesimal Is

b021

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

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

Nearby Numbers

Positive, nonzero integers within three units

228
ai21
Two Hundred and Twenty-Eight in Base 21 Unovigesimal
229
aj21
Two Hundred and Twenty-Nine in Base 21 Unovigesimal
230
ak21
Two Hundred and Thirty in Base 21 Unovigesimal
232
b121
Two Hundred and Thirty-Two in Base 21 Unovigesimal
233
b221
Two Hundred and Thirty-Three in Base 21 Unovigesimal
234
b321
Two 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.

2.31e2

Reciprocal

A number multiplied with its reciprocal is one.

0.01j1j1j1j1j1j321

The reciprocal of 231 in Base 21 Unovigesimal.

Palindrome?

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

The number b021 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 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 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 thirty-one has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal

Prime Factorization

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

3211 · 7211 · b211 = b021

Base Conversions

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