The Number

31945

Thirty-One Thousand Nine Hundred and Forty-Five

In Base 21 Unovigesimal Is

399421

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

For more familiar numbers: See Thirty-One Thousand Nine Hundred and Forty-Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

31942
399121
Thirty-One Thousand Nine Hundred and Forty-Two in Base 21 Unovigesimal
31943
399221
Thirty-One Thousand Nine Hundred and Forty-Three in Base 21 Unovigesimal
31944
399321
Thirty-One Thousand Nine Hundred and Forty-Four in Base 21 Unovigesimal
31946
399521
Thirty-One Thousand Nine Hundred and Forty-Six in Base 21 Unovigesimal
31947
399621
Thirty-One Thousand Nine Hundred and Forty-Seven in Base 21 Unovigesimal
31948
399721
Thirty-One Thousand Nine Hundred and Forty-Eight in Base 21 Unovigesimal

Scientific Notation

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

3.1945e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00061hgj791di6621

The reciprocal of 31945 in Base 21 Unovigesimal.

Palindrome?

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

The number 399421 is not a palindrome.

Not A Prime Number

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

Thirty-one thousand nine hundred and forty-five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Thirty-one thousand nine hundred and forty-five 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 thirty-one thousand nine hundred and forty-five has the following 2 prime factors:

5
521
Five in Base 21 Unovigesimal
6389
ea521
Six Thousand Three Hundred and Eighty-Nine in Base 21 Unovigesimal

Prime Factorization

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

5211 · ea5211 = 399421

Base Conversions

The number thirty-one thousand nine hundred and forty-five in 35 different bases