The Number

31990

Thirty-One Thousand Nine Hundred and Ninety

In Base 12 Duodecimal Is

1661a12

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

31987
1661712
Thirty-One Thousand Nine Hundred and Eighty-Seven in Base 12 Duodecimal
31988
1661812
Thirty-One Thousand Nine Hundred and Eighty-Eight in Base 12 Duodecimal
31989
1661912
Thirty-One Thousand Nine Hundred and Eighty-Nine in Base 12 Duodecimal
31991
1661b12
Thirty-One Thousand Nine Hundred and Ninety-One in Base 12 Duodecimal
31992
1662012
Thirty-One Thousand Nine Hundred and Ninety-Two in Base 12 Duodecimal
31993
1662112
Thirty-One Thousand Nine Hundred and Ninety-Three in Base 12 Duodecimal

Scientific Notation

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

3.1990e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00007941165962a102312

The reciprocal of 31990 in Base 12 Duodecimal.

Palindrome?

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

The number 1661a12 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 ninety is a composite number with 16 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Thirty-one thousand nine hundred and ninety 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 nine hundred and ninety has the following 4 prime factors:

2
212
Two in Base 12 Duodecimal
5
512
Five in Base 12 Duodecimal
7
712
Seven in Base 12 Duodecimal
457
32112
Four Hundred and Fifty-Seven in Base 12 Duodecimal

Prime Factorization

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

2121 · 5121 · 7121 · 321121 = 1661a12

Base Conversions

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