The Number

81642

Eighty-One Thousand Six Hundred and Forty-Two

In Base 31 Untrigesimal Is

2mtj31

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

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

Nearby Numbers

Positive, nonzero integers within three units

81639
2mtg31
Eighty-One Thousand Six Hundred and Thirty-Nine in Base 31 Untrigesimal
81640
2mth31
Eighty-One Thousand Six Hundred and Forty in Base 31 Untrigesimal
81641
2mti31
Eighty-One Thousand Six Hundred and Forty-One in Base 31 Untrigesimal
81643
2mtk31
Eighty-One Thousand Six Hundred and Forty-Three in Base 31 Untrigesimal
81644
2mtl31
Eighty-One Thousand Six Hundred and Forty-Four in Base 31 Untrigesimal
81645
2mtm31
Eighty-One Thousand Six Hundred and Forty-Five in Base 31 Untrigesimal

Scientific Notation

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

8.1642e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000b9kkt1q06731

The reciprocal of 81642 in Base 31 Untrigesimal.

Palindrome?

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

The number 2mtj31 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 six hundred and forty-two is a composite number with 16 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 six hundred and forty-two 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 eighty-one thousand six hundred and forty-two has the following 4 prime factors:

2
231
Two in Base 31 Untrigesimal
3
331
Three in Base 31 Untrigesimal
11
b31
Eleven in Base 31 Untrigesimal
1237
18s31
One Thousand Two Hundred and Thirty-Seven in Base 31 Untrigesimal

Prime Factorization

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

2311 · 3311 · b311 · 18s311 = 2mtj31

Base Conversions

The number eighty-one thousand six hundred and forty-two in 35 different bases