The Number

648

Six Hundred and Forty-Eight

In Base 20 Vigesimal Is

1c820

The numbers with a 20 subscript use Base 20 Vigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

645
1c520
Six Hundred and Forty-Five in Base 20 Vigesimal
646
1c620
Six Hundred and Forty-Six in Base 20 Vigesimal
647
1c720
Six Hundred and Forty-Seven in Base 20 Vigesimal
649
1c920
Six Hundred and Forty-Nine in Base 20 Vigesimal
650
1ca20
Six Hundred and Fifty in Base 20 Vigesimal
651
1cb20
Six Hundred and Fifty-One in Base 20 Vigesimal

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.

0.00c6i58cgfg0jf20

The reciprocal of 648 in Base 20 Vigesimal.

Palindrome?

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

The number 1c820 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 20 Vigesimal

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
220
Two in Base 20 Vigesimal
3
320
Three in Base 20 Vigesimal

Prime Factorization

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

2203 · 3204 = 1c820

Base Conversions

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