The Number

640085

Six Hundred and Forty Thousand and Eighty-Five

In Base 31 Untrigesimal Is

lf1s31

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

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

Nearby Numbers

Positive, nonzero integers within three units

640082
lf1p31
Six Hundred and Forty Thousand and Eighty-Two in Base 31 Untrigesimal
640083
lf1q31
Six Hundred and Forty Thousand and Eighty-Three in Base 31 Untrigesimal
640084
lf1r31
Six Hundred and Forty Thousand and Eighty-Four in Base 31 Untrigesimal
640086
lf1t31
Six Hundred and Forty Thousand and Eighty-Six in Base 31 Untrigesimal
640087
lf1u31
Six Hundred and Forty Thousand and Eighty-Seven in Base 31 Untrigesimal
640088
lf2031
Six Hundred and Forty Thousand and Eighty-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.

6.40085e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001dmgn8j3iu531

The reciprocal of 640085 in Base 31 Untrigesimal.

Palindrome?

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

The number lf1s31 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 eighty-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.

Six hundred and forty thousand and eighty-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 six hundred and forty thousand and eighty-five has the following 3 prime factors:

5
531
Five in Base 31 Untrigesimal
313
a331
Three Hundred and Thirteen in Base 31 Untrigesimal
409
d631
Four Hundred and 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

5311 · a3311 · d6311 = lf1s31

Base Conversions

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