The Number

31489

Thirty-One Thousand Four Hundred and Eighty-Nine

In Base 21 Unovigesimal Is

388a21

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

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

Nearby Numbers

Positive, nonzero integers within three units

31486
388721
Thirty-One Thousand Four Hundred and Eighty-Six in Base 21 Unovigesimal
31487
388821
Thirty-One Thousand Four Hundred and Eighty-Seven in Base 21 Unovigesimal
31488
388921
Thirty-One Thousand Four Hundred and Eighty-Eight in Base 21 Unovigesimal
31490
388b21
Thirty-One Thousand Four Hundred and Ninety in Base 21 Unovigesimal
31491
388c21
Thirty-One Thousand Four Hundred and Ninety-One in Base 21 Unovigesimal
31492
388d21
Thirty-One Thousand Four Hundred and Ninety-Two in Base 21 Unovigesimal

Scientific Notation

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

3.1489e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00063ee82k8ak0jc21

The reciprocal of 31489 in Base 21 Unovigesimal.

Palindrome?

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

The number 388a21 is not a palindrome.

A Prime Number

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

Thirty-one thousand four hundred and eighty-nine is the 3389th prime number.   See primes in Base 21 Unovigesimal

Not A Composite

Composites have more than just these two factors.

Thirty-One Thousand Four Hundred and Eighty-Nine is not a composite number because it has exactly two factors: One and Thirty-One Thousand Four Hundred and Eighty-Nine

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 four hundred and eighty-nine has the following 1 prime factor:

31489
388a21
Thirty-One Thousand Four 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

388a211 = 388a21

Base Conversions

The number thirty-one thousand four hundred and eighty-nine in 35 different bases