The Number

31845

Thirty-One Thousand Eight Hundred and Forty-Five

In Base 21 Unovigesimal Is

394921

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

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

Nearby Numbers

Positive, nonzero integers within three units

31842
394621
Thirty-One Thousand Eight Hundred and Forty-Two in Base 21 Unovigesimal
31843
394721
Thirty-One Thousand Eight Hundred and Forty-Three in Base 21 Unovigesimal
31844
394821
Thirty-One Thousand Eight Hundred and Forty-Four in Base 21 Unovigesimal
31846
394a21
Thirty-One Thousand Eight Hundred and Forty-Six in Base 21 Unovigesimal
31847
394b21
Thirty-One Thousand Eight Hundred and Forty-Seven in Base 21 Unovigesimal
31848
394c21
Thirty-One Thousand Eight 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.

3.1845e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0006254k7c447ead21

The reciprocal of 31845 in Base 21 Unovigesimal.

Palindrome?

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

The number 394921 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 eight hundred and forty-five is a composite number with 16 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 eight hundred and forty-five is a composite number with 16 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 eight hundred and forty-five has the following 4 prime factors:

3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
193
9421
One Hundred and Ninety-Three 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 · 5211 · b211 · 94211 = 394921

Base Conversions

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