The Number

81005

Eighty-One Thousand and Five

In Base 31 Untrigesimal Is

2m9231

The numbers with a 31 subscript use Base 31 Untrigesimal notation.

For more familiar numbers: See Eighty-One Thousand and Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

81002
2m8u31
Eighty-One Thousand and Two in Base 31 Untrigesimal
81003
2m9031
Eighty-One Thousand and Three in Base 31 Untrigesimal
81004
2m9131
Eighty-One Thousand and Four in Base 31 Untrigesimal
81006
2m9331
Eighty-One Thousand and Six in Base 31 Untrigesimal
81007
2m9431
Eighty-One Thousand and Seven in Base 31 Untrigesimal
81008
2m9531
Eighty-One Thousand and Eight in Base 31 Untrigesimal

Scientific Notation

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

8.1005e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000bcd4t1hibjl31

The reciprocal of 81005 in Base 31 Untrigesimal.

Palindrome?

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

The number 2m9231 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 and five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 31 Untrigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand and five is a composite number with 8 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 and five has the following 3 prime factors:

5
531
Five in Base 31 Untrigesimal
17
h31
Seventeen in Base 31 Untrigesimal
953
un31
Nine Hundred and Fifty-Three in Base 31 Untrigesimal

Prime Factorization

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

5311 · h311 · un311 = 2m9231

Base Conversions

The number eighty-one thousand and five in 35 different bases