The Number

81972

Eighty-One Thousand Nine Hundred and Seventy-Two

In Base 20 Vigesimal Is

a4ic20

The numbers with a 20 subscript use Base 20 Vigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81969
a4i920
Eighty-One Thousand Nine Hundred and Sixty-Nine in Base 20 Vigesimal
81970
a4ia20
Eighty-One Thousand Nine Hundred and Seventy in Base 20 Vigesimal
81971
a4ib20
Eighty-One Thousand Nine Hundred and Seventy-One in Base 20 Vigesimal
81973
a4id20
Eighty-One Thousand Nine Hundred and Seventy-Three in Base 20 Vigesimal
81974
a4ie20
Eighty-One Thousand Nine Hundred and Seventy-Four in Base 20 Vigesimal
81975
a4if20
Eighty-One Thousand Nine Hundred and Seventy-Five in Base 20 Vigesimal

Scientific Notation

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

8.1972e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001j0f1f4cc6fia20

The reciprocal of 81972 in Base 20 Vigesimal.

Palindrome?

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

The number a4ic20 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand nine hundred and seventy-two is a composite number with 60 total factors (including 1 and itself).   See primes in Base 20 Vigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand nine hundred and seventy-two is a composite number with 60 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 eighty-one thousand nine hundred and seventy-two has the following 4 prime factors:

2
220
Two in Base 20 Vigesimal
3
320
Three in Base 20 Vigesimal
11
b20
Eleven in Base 20 Vigesimal
23
1320
Twenty-Three in Base 20 Vigesimal

Prime Factorization

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

2202 · 3204 · b201 · 13201 = a4ic20

Base Conversions

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