The Number

640072

Six Hundred and Forty Thousand and Seventy-Two

In Base 31 Untrigesimal Is

lf1f31

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

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

Nearby Numbers

Positive, nonzero integers within three units

640069
lf1c31
Six Hundred and Forty Thousand and Sixty-Nine in Base 31 Untrigesimal
640070
lf1d31
Six Hundred and Forty Thousand and Seventy in Base 31 Untrigesimal
640071
lf1e31
Six Hundred and Forty Thousand and Seventy-One in Base 31 Untrigesimal
640073
lf1g31
Six Hundred and Forty Thousand and Seventy-Three in Base 31 Untrigesimal
640074
lf1h31
Six Hundred and Forty Thousand and Seventy-Four in Base 31 Untrigesimal
640075
lf1i31
Six Hundred and Forty Thousand and Seventy-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.

6.40072e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001dmhjaha6euc31

The reciprocal of 640072 in Base 31 Untrigesimal.

Palindrome?

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

The number lf1f31 is not a palindrome.

Not A Prime Number

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

Six hundred and forty thousand and seventy-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.

Six hundred and forty thousand and seventy-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 six hundred and forty thousand and seventy-two has the following 3 prime factors:

2
231
Two in Base 31 Untrigesimal
19
j31
Nineteen in Base 31 Untrigesimal
4211
4bq31
Four Thousand Two Hundred and Eleven in Base 31 Untrigesimal

Prime Factorization

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

2313 · j311 · 4bq311 = lf1f31

Base Conversions

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