The Number

21231

Twenty-One Thousand Two Hundred and Thirty-One

Nearby Numbers

Positive, nonzero integers within three units

21228
Twenty-One Thousand Two Hundred and Twenty-Eight
21229
Twenty-One Thousand Two Hundred and Twenty-Nine
21230
Twenty-One Thousand Two Hundred and Thirty
21232
Twenty-One Thousand Two Hundred and Thirty-Two
21233
Twenty-One Thousand Two Hundred and Thirty-Three
21234
Twenty-One Thousand Two Hundred and Thirty-Four

Scientific Notation

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

2.1231e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004710093730865244

The reciprocal of 21231.

Palindrome?

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

The number 21231 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 thirty-one is a composite number with 12 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand two hundred and thirty-one is a composite number with 12 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 thirty-one has the following 3 prime factors:

3
Three
7
Seven
337
Three Hundred and Thirty-Seven

Prime Factorization

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

32 · 71 · 3371 = 21231

Base Conversions

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