The Number

640660

Six Hundred and Forty Thousand Six Hundred and Sixty

In Base 13 Tridecimal Is

1957b713

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

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

Nearby Numbers

Positive, nonzero integers within three units

640657
1957b413
Six Hundred and Forty Thousand Six Hundred and Fifty-Seven in Base 13 Tridecimal
640658
1957b513
Six Hundred and Forty Thousand Six Hundred and Fifty-Eight in Base 13 Tridecimal
640659
1957b613
Six Hundred and Forty Thousand Six Hundred and Fifty-Nine in Base 13 Tridecimal
640661
1957b813
Six Hundred and Forty Thousand Six Hundred and Sixty-One in Base 13 Tridecimal
640662
1957b913
Six Hundred and Forty Thousand Six Hundred and Sixty-Two in Base 13 Tridecimal
640663
1957ba13
Six Hundred and Forty Thousand Six Hundred and Sixty-Three in Base 13 Tridecimal

Scientific Notation

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

6.40660e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000076c35caa8373b3713

The reciprocal of 640660 in Base 13 Tridecimal.

Palindrome?

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

The number 1957b713 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 sixty is a composite number with 24 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 six hundred and sixty is a composite number with 24 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 sixty has the following 4 prime factors:

2
213
Two in Base 13 Tridecimal
5
513
Five in Base 13 Tridecimal
103
7c13
One Hundred and Three in Base 13 Tridecimal
311
1ac13
Three Hundred and Eleven in Base 13 Tridecimal

Prime Factorization

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

2132 · 5131 · 7c131 · 1ac131 = 1957b713

Base Conversions

The number six hundred and forty thousand six hundred and sixty in 35 different bases