The Number

640642

Six Hundred and Forty Thousand Six Hundred and Forty-Two

In Base 12 Duodecimal Is

26a8aa12

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

640639
26a8a712
Six Hundred and Forty Thousand Six Hundred and Thirty-Nine in Base 12 Duodecimal
640640
26a8a812
Six Hundred and Forty Thousand Six Hundred and Forty in Base 12 Duodecimal
640641
26a8a912
Six Hundred and Forty Thousand Six Hundred and Forty-One in Base 12 Duodecimal
640643
26a8ab12
Six Hundred and Forty Thousand Six Hundred and Forty-Three in Base 12 Duodecimal
640644
26a8b012
Six Hundred and Forty Thousand Six Hundred and Forty-Four in Base 12 Duodecimal
640645
26a8b112
Six Hundred and Forty Thousand Six Hundred and Forty-Five in Base 12 Duodecimal

Scientific Notation

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

6.40642e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000047b20b201945920712

The reciprocal of 640642 in Base 12 Duodecimal.

Palindrome?

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

The number 26a8aa12 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 six hundred and forty-two is a composite number with 16 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

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

2
212
Two in Base 12 Duodecimal
19
1712
Nineteen in Base 12 Duodecimal
23
1b12
Twenty-Three in Base 12 Duodecimal
733
51112
Seven Hundred and Thirty-Three in Base 12 Duodecimal

Prime Factorization

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

2121 · 17121 · 1b121 · 511121 = 26a8aa12

Base Conversions

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