The Number

21545

Twenty-One Thousand Five Hundred and Forty-Five

In Base 9 Nonary Is

324889

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

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

Nearby Numbers

Positive, nonzero integers within three units

21542
324859
Twenty-One Thousand Five Hundred and Forty-Two in Base 9 Nonary
21543
324869
Twenty-One Thousand Five Hundred and Forty-Three in Base 9 Nonary
21544
324879
Twenty-One Thousand Five Hundred and Forty-Four in Base 9 Nonary
21546
325009
Twenty-One Thousand Five Hundred and Forty-Six in Base 9 Nonary
21547
325019
Twenty-One Thousand Five Hundred and Forty-Seven in Base 9 Nonary
21548
325029
Twenty-One Thousand Five Hundred and Forty-Eight in Base 9 Nonary

Scientific Notation

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

2.1545e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000265888254001582589

The reciprocal of 21545 in Base 9 Nonary.

Palindrome?

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

The number 324889 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 five hundred and forty-five is a composite number with 8 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 five hundred and forty-five is a composite number with 8 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 five hundred and forty-five has the following 3 prime factors:

5
59
Five in Base 9 Nonary
31
349
Thirty-One 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

591 · 3491 · 16491 = 324889

Base Conversions

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