The Number

21129

Twenty-One Thousand One Hundred and Twenty-Nine

In Base 18 Octodecimal Is

3b3f18

The numbers with a 18 subscript use Base 18 Octodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21126
3b3c18
Twenty-One Thousand One Hundred and Twenty-Six in Base 18 Octodecimal
21127
3b3d18
Twenty-One Thousand One Hundred and Twenty-Seven in Base 18 Octodecimal
21128
3b3e18
Twenty-One Thousand One Hundred and Twenty-Eight in Base 18 Octodecimal
21130
3b3g18
Twenty-One Thousand One Hundred and Thirty in Base 18 Octodecimal
21131
3b3h18
Twenty-One Thousand One Hundred and Thirty-One in Base 18 Octodecimal
21132
3b4018
Twenty-One Thousand One Hundred and Thirty-Two in Base 18 Octodecimal

Scientific Notation

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

2.1129e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004h7d635140b8h18

The reciprocal of 21129 in Base 18 Octodecimal.

Palindrome?

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

The number 3b3f18 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 one hundred and twenty-nine is a composite number with 4 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand one hundred and twenty-nine 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 twenty-one thousand one hundred and twenty-nine has the following 2 prime factors:

3
318
Three in Base 18 Octodecimal
7043
13d518
Seven Thousand and Forty-Three in Base 18 Octodecimal

Prime Factorization

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

3181 · 13d5181 = 3b3f18

Base Conversions

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