The Number

31812

Thirty-One Thousand Eight Hundred and Twelve

In Base 21 Unovigesimal Is

392i21

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

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

Nearby Numbers

Positive, nonzero integers within three units

31809
392f21
Thirty-One Thousand Eight Hundred and Nine in Base 21 Unovigesimal
31810
392g21
Thirty-One Thousand Eight Hundred and Ten in Base 21 Unovigesimal
31811
392h21
Thirty-One Thousand Eight Hundred and Eleven in Base 21 Unovigesimal
31813
392j21
Thirty-One Thousand Eight Hundred and Thirteen in Base 21 Unovigesimal
31814
392k21
Thirty-One Thousand Eight Hundred and Fourteen in Base 21 Unovigesimal
31815
393021
Thirty-One Thousand Eight Hundred and Fifteen in Base 21 Unovigesimal

Scientific Notation

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

3.1812e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0006280d91jbahb21

The reciprocal of 31812 in Base 21 Unovigesimal.

Palindrome?

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

The number 392i21 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 twelve is a composite number with 24 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 twelve is a composite number with 24 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 twelve has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
241
ba21
Two Hundred and Forty-One in Base 21 Unovigesimal

Prime Factorization

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

2212 · 3211 · b211 · ba211 = 392i21

Base Conversions

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