The Number

648

Six Hundred and Forty-Eight

In Base 15 Quindecimal Is

2d315

The numbers with a 15 subscript use Base 15 Quindecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

645
2d015
Six Hundred and Forty-Five in Base 15 Quindecimal
646
2d115
Six Hundred and Forty-Six in Base 15 Quindecimal
647
2d215
Six Hundred and Forty-Seven in Base 15 Quindecimal
649
2d415
Six Hundred and Forty-Nine in Base 15 Quindecimal
650
2d515
Six Hundred and Fifty in Base 15 Quindecimal
651
2d615
Six Hundred and Fifty-One in Base 15 Quindecimal

Scientific Notation

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

6.48e2

Reciprocal

A number multiplied with its reciprocal is one.

0.00531d1d1d1d1d1d15

The reciprocal of 648 in Base 15 Quindecimal.

Palindrome?

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

The number 2d315 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-eight is a composite number with 20 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Six hundred and forty-eight is a composite number with 20 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-eight has the following 2 prime factors:

2
215
Two in Base 15 Quindecimal
3
315
Three in Base 15 Quindecimal

Prime Factorization

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

2153 · 3154 = 2d315

Base Conversions

The number six hundred and forty-eight in 35 different bases