The Number

139972

One Hundred and Thirty-Nine Thousand Nine Hundred and Seventy-Two

In Base 21 Unovigesimal Is

f28721

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

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

Nearby Numbers

Positive, nonzero integers within three units

139969
f28421
One Hundred and Thirty-Nine Thousand Nine Hundred and Sixty-Nine in Base 21 Unovigesimal
139970
f28521
One Hundred and Thirty-Nine Thousand Nine Hundred and Seventy in Base 21 Unovigesimal
139971
f28621
One Hundred and Thirty-Nine Thousand Nine Hundred and Seventy-One in Base 21 Unovigesimal
139973
f28821
One Hundred and Thirty-Nine Thousand Nine Hundred and Seventy-Three in Base 21 Unovigesimal
139974
f28921
One Hundred and Thirty-Nine Thousand Nine Hundred and Seventy-Four in Base 21 Unovigesimal
139975
f28a21
One Hundred and Thirty-Nine Thousand Nine Hundred and Seventy-Five in Base 21 Unovigesimal

Scientific Notation

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

1.39972e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000183fa6h3592g21

The reciprocal of 139972 in Base 21 Unovigesimal.

Palindrome?

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

The number f28721 is not a palindrome.

Not A Prime Number

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

One hundred and thirty-nine thousand nine hundred and seventy-two 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.

One hundred and thirty-nine thousand nine hundred and seventy-two 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 one hundred and thirty-nine thousand nine hundred and seventy-two has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
4999
b7121
Four Thousand Nine Hundred and Ninety-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 · 7211 · b71211 = f28721

Base Conversions

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