The Number

21021

Twenty-One Thousand and Twenty-One

In Base 12 Duodecimal Is

101b912

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

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

Nearby Numbers

Positive, nonzero integers within three units

21018
101b612
Twenty-One Thousand and Eightteen in Base 12 Duodecimal
21019
101b712
Twenty-One Thousand and Nineteen in Base 12 Duodecimal
21020
101b812
Twenty-One Thousand and Twenty in Base 12 Duodecimal
21022
101ba12
Twenty-One Thousand and Twenty-Two in Base 12 Duodecimal
21023
101bb12
Twenty-One Thousand and Twenty-Three in Base 12 Duodecimal
21024
1020012
Twenty-One Thousand and Twenty-Four in Base 12 Duodecimal

Scientific Notation

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

2.1021e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ba06a44b9187a1612

The reciprocal of 21021 in Base 12 Duodecimal.

Palindrome?

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

The number 101b912 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 and twenty-one is a composite number with 24 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand and twenty-one 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 twenty-one thousand and twenty-one has the following 4 prime factors:

3
312
Three in Base 12 Duodecimal
7
712
Seven in Base 12 Duodecimal
11
b12
Eleven in Base 12 Duodecimal
13
1112
Thirteen in Base 12 Duodecimal

Prime Factorization

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

3121 · 7122 · b121 · 11121 = 101b912

Base Conversions

The number twenty-one thousand and twenty-one in 35 different bases