The Number

21312

Twenty-One Thousand Three Hundred and Twelve

In Base 15 Quindecimal Is

64ac15

The numbers with a 15 subscript use Base 15 Quindecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21309
64a915
Twenty-One Thousand Three Hundred and Nine in Base 15 Quindecimal
21310
64aa15
Twenty-One Thousand Three Hundred and Ten in Base 15 Quindecimal
21311
64ab15
Twenty-One Thousand Three Hundred and Eleven in Base 15 Quindecimal
21313
64ad15
Twenty-One Thousand Three Hundred and Thirteen in Base 15 Quindecimal
21314
64ae15
Twenty-One Thousand Three Hundred and Fourteen in Base 15 Quindecimal
21315
64b015
Twenty-One Thousand Three Hundred and Fifteen in Base 15 Quindecimal

Scientific Notation

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

2.1312e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00025970b49125c4c15

The reciprocal of 21312 in Base 15 Quindecimal.

Palindrome?

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

The number 64ac15 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand three hundred and twelve is a composite number with 42 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand three hundred and twelve is a composite number with 42 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 twenty-one thousand three hundred and twelve has the following 3 prime factors:

2
215
Two in Base 15 Quindecimal
3
315
Three in Base 15 Quindecimal
37
2715
Thirty-Seven in Base 15 Quindecimal

Prime Factorization

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

2156 · 3152 · 27151 = 64ac15

Base Conversions

The number twenty-one thousand three hundred and twelve in 35 different bases