The Number

640405

Six Hundred and Forty Thousand Four Hundred and Five

In Base 13 Tridecimal Is

19564c13

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

640402
19564913
Six Hundred and Forty Thousand Four Hundred and Two in Base 13 Tridecimal
640403
19564a13
Six Hundred and Forty Thousand Four Hundred and Three in Base 13 Tridecimal
640404
19564b13
Six Hundred and Forty Thousand Four Hundred and Four in Base 13 Tridecimal
640406
19565013
Six Hundred and Forty Thousand Four Hundred and Six in Base 13 Tridecimal
640407
19565113
Six Hundred and Forty Thousand Four Hundred and Seven in Base 13 Tridecimal
640408
19565213
Six Hundred and Forty Thousand Four Hundred and Eight in Base 13 Tridecimal

Scientific Notation

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

6.40405e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000076ca08919c1842813

The reciprocal of 640405 in Base 13 Tridecimal.

Palindrome?

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

The number 19564c13 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 four hundred and five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

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

5
513
Five in Base 13 Tridecimal
263
17313
Two Hundred and Sixty-Three in Base 13 Tridecimal
487
2b613
Four Hundred and Eighty-Seven in Base 13 Tridecimal

Prime Factorization

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

5131 · 173131 · 2b6131 = 19564c13

Base Conversions

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