The Number

640042

Six Hundred and Forty Thousand and Forty-Two

In Base 31 Untrigesimal Is

lf0g31

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

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

Nearby Numbers

Positive, nonzero integers within three units

640039
lf0d31
Six Hundred and Forty Thousand and Thirty-Nine in Base 31 Untrigesimal
640040
lf0e31
Six Hundred and Forty Thousand and Forty in Base 31 Untrigesimal
640041
lf0f31
Six Hundred and Forty Thousand and Forty-One in Base 31 Untrigesimal
640043
lf0h31
Six Hundred and Forty Thousand and Forty-Three in Base 31 Untrigesimal
640044
lf0i31
Six Hundred and Forty Thousand and Forty-Four in Base 31 Untrigesimal
640045
lf0j31
Six Hundred and Forty Thousand 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.

6.40042e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001dmjjom063tf31

The reciprocal of 640042 in Base 31 Untrigesimal.

Palindrome?

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

The number lf0g31 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 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.

Six hundred and forty thousand 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 six hundred and forty thousand and forty-two has the following 4 prime factors:

2
231
Two in Base 31 Untrigesimal
13
d31
Thirteen in Base 31 Untrigesimal
103
3a31
One Hundred and Three in Base 31 Untrigesimal
239
7m31
Two Hundred and Thirty-Nine 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 · d311 · 3a311 · 7m311 = lf0g31

Base Conversions

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