The Number

31385

Thirty-One Thousand Three Hundred and Eighty-Five

In Base 21 Unovigesimal Is

383b21

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

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

Nearby Numbers

Positive, nonzero integers within three units

31382
383821
Thirty-One Thousand Three Hundred and Eighty-Two in Base 21 Unovigesimal
31383
383921
Thirty-One Thousand Three Hundred and Eighty-Three in Base 21 Unovigesimal
31384
383a21
Thirty-One Thousand Three Hundred and Eighty-Four in Base 21 Unovigesimal
31386
383c21
Thirty-One Thousand Three Hundred and Eighty-Six in Base 21 Unovigesimal
31387
383d21
Thirty-One Thousand Three Hundred and Eighty-Seven in Base 21 Unovigesimal
31388
383e21
Thirty-One Thousand Three Hundred and Eighty-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.

3.1385e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000642ej7aia55i921

The reciprocal of 31385 in Base 21 Unovigesimal.

Palindrome?

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

The number 383b21 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 three hundred and eighty-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 three hundred and eighty-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 three hundred and eighty-five has the following 2 prime factors:

5
521
Five in Base 21 Unovigesimal
6277
e4j21
Six Thousand Two Hundred and Seventy-Seven 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 · e4j211 = 383b21

Base Conversions

The number thirty-one thousand three hundred and eighty-five in 35 different bases