The Number

21970

Twenty-One Thousand Nine Hundred and Seventy

In Base 25 Pentavigesimal Is

1a3k25

The numbers with a 25 subscript use Base 25 Pentavigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21967
1a3h25
Twenty-One Thousand Nine Hundred and Sixty-Seven in Base 25 Pentavigesimal
21968
1a3i25
Twenty-One Thousand Nine Hundred and Sixty-Eight in Base 25 Pentavigesimal
21969
1a3j25
Twenty-One Thousand Nine Hundred and Sixty-Nine in Base 25 Pentavigesimal
21971
1a3l25
Twenty-One Thousand Nine Hundred and Seventy-One in Base 25 Pentavigesimal
21972
1a3m25
Twenty-One Thousand Nine Hundred and Seventy-Two in Base 25 Pentavigesimal
21973
1a3n25
Twenty-One Thousand Nine Hundred and Seventy-Three in Base 25 Pentavigesimal

Scientific Notation

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

2.1970e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000hjcb917e80a25

The reciprocal of 21970 in Base 25 Pentavigesimal.

Palindrome?

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

The number 1a3k25 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 nine hundred and seventy is a composite number with 16 total factors (including 1 and itself).   See primes in Base 25 Pentavigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and seventy 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 nine hundred and seventy has the following 3 prime factors:

2
225
Two in Base 25 Pentavigesimal
5
525
Five in Base 25 Pentavigesimal
13
d25
Thirteen in Base 25 Pentavigesimal

Prime Factorization

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

2251 · 5251 · d253 = 1a3k25

Base Conversions

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