The Number

640243

Six Hundred and Forty Thousand Two Hundred and Forty-Three

In Base 13 Tridecimal Is

19555613

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

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

Nearby Numbers

Positive, nonzero integers within three units

640240
19555313
Six Hundred and Forty Thousand Two Hundred and Forty in Base 13 Tridecimal
640241
19555413
Six Hundred and Forty Thousand Two Hundred and Forty-One in Base 13 Tridecimal
640242
19555513
Six Hundred and Forty Thousand Two Hundred and Forty-Two in Base 13 Tridecimal
640244
19555713
Six Hundred and Forty Thousand Two Hundred and Forty-Four in Base 13 Tridecimal
640245
19555813
Six Hundred and Forty Thousand Two Hundred and Forty-Five in Base 13 Tridecimal
640246
19555913
Six Hundred and Forty Thousand Two Hundred and Forty-Six in Base 13 Tridecimal

Scientific Notation

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

6.40243e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00000770131a50714aca13

The reciprocal of 640243 in Base 13 Tridecimal.

Palindrome?

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

The number 19555613 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 two hundred and forty-three 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 two hundred and forty-three 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 two hundred and forty-three has the following 3 prime factors:

19
1613
Nineteen in Base 13 Tridecimal
31
2513
Thirty-One in Base 13 Tridecimal
1087
65813
One Thousand 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

16131 · 25131 · 658131 = 19555613

Base Conversions

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