The Number

20980

Twenty Thousand Nine Hundred and Eighty

In Base 21 Unovigesimal Is

25c121

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

20977
25bj21
Twenty Thousand Nine Hundred and Seventy-Seven in Base 21 Unovigesimal
20978
25bk21
Twenty Thousand Nine Hundred and Seventy-Eight in Base 21 Unovigesimal
20979
25c021
Twenty Thousand Nine Hundred and Seventy-Nine in Base 21 Unovigesimal
20981
25c221
Twenty Thousand Nine Hundred and Eighty-One in Base 21 Unovigesimal
20982
25c321
Twenty Thousand Nine Hundred and Eighty-Two in Base 21 Unovigesimal
20983
25c421
Twenty Thousand Nine Hundred and Eighty-Three in Base 21 Unovigesimal

Scientific Notation

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

2.0980e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00095dkia9iee3e21

The reciprocal of 20980 in Base 21 Unovigesimal.

Palindrome?

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

The number 25c121 is not a palindrome.

Not A Prime Number

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

Twenty thousand nine hundred and eighty is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty thousand nine hundred and eighty is a composite number with 12 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 thousand nine hundred and eighty has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
1049
27k21
One Thousand and Forty-Nine in Base 21 Unovigesimal

Prime Factorization

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

2212 · 5211 · 27k211 = 25c121

Base Conversions

The number twenty thousand nine hundred and eighty in 35 different bases