The Number

21128

Twenty-One Thousand One Hundred and Twenty-Eight

In Base 9 Nonary Is

318759

The numbers with a 9 subscript use Base 9 Nonary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21125
318729
Twenty-One Thousand One Hundred and Twenty-Five in Base 9 Nonary
21126
318739
Twenty-One Thousand One Hundred and Twenty-Six in Base 9 Nonary
21127
318749
Twenty-One Thousand One Hundred and Twenty-Seven in Base 9 Nonary
21129
318769
Twenty-One Thousand One Hundred and Twenty-Nine in Base 9 Nonary
21130
318779
Twenty-One Thousand One Hundred and Thirty in Base 9 Nonary
21131
318789
Twenty-One Thousand One Hundred and Thirty-One in Base 9 Nonary

Scientific Notation

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

2.1128e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000271337401425004659

The reciprocal of 21128 in Base 9 Nonary.

Palindrome?

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

The number 318759 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-eight is a composite number with 16 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

Twenty-one thousand one hundred and twenty-eight is a composite number with 16 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-eight has the following 3 prime factors:

2
29
Two in Base 9 Nonary
19
219
Nineteen in Base 9 Nonary
139
1649
One Hundred and Thirty-Nine in Base 9 Nonary

Prime Factorization

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

293 · 2191 · 16491 = 318759

Base Conversions

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