The Number

81972

Eighty-One Thousand Nine Hundred and Seventy-Two

In Base 18 Octodecimal Is

e10018

The numbers with a 18 subscript use Base 18 Octodecimal 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
e0hf18
Eighty-One Thousand Nine Hundred and Sixty-Nine in Base 18 Octodecimal
81970
e0hg18
Eighty-One Thousand Nine Hundred and Seventy in Base 18 Octodecimal
81971
e0hh18
Eighty-One Thousand Nine Hundred and Seventy-One in Base 18 Octodecimal
81973
e10118
Eighty-One Thousand Nine Hundred and Seventy-Three in Base 18 Octodecimal
81974
e10218
Eighty-One Thousand Nine Hundred and Seventy-Four in Base 18 Octodecimal
81975
e10318
Eighty-One Thousand Nine Hundred and Seventy-Five in Base 18 Octodecimal

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.

0.000150gbc07c59g18

The reciprocal of 81972 in Base 18 Octodecimal.

Palindrome?

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

The number e10018 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 18 Octodecimal

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
218
Two in Base 18 Octodecimal
3
318
Three in Base 18 Octodecimal
11
b18
Eleven in Base 18 Octodecimal
23
1518
Twenty-Three in Base 18 Octodecimal

Prime Factorization

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

2182 · 3184 · b181 · 15181 = e10018

Base Conversions

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