The Number

648

Six Hundred and Forty-Eight

In Base 4 Quaternary Is

220204

The numbers with a 4 subscript use Base 4 Quaternary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

645
220114
Six Hundred and Forty-Five in Base 4 Quaternary
646
220124
Six Hundred and Forty-Six in Base 4 Quaternary
647
220134
Six Hundred and Forty-Seven in Base 4 Quaternary
649
220214
Six Hundred and Forty-Nine in Base 4 Quaternary
650
220224
Six Hundred and Fifty in Base 4 Quaternary
651
220234
Six Hundred and Fifty-One in Base 4 Quaternary

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.

0.000012110202300333031123221324

The reciprocal of 648 in Base 4 Quaternary.

Palindrome?

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

The number 220204 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 4 Quaternary

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
24
Two in Base 4 Quaternary
3
34
Three in Base 4 Quaternary

Prime Factorization

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

243 · 344 = 220204

Base Conversions

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