The Number

642974

Six Hundred and Forty-Two Thousand Nine Hundred and Seventy-Four

In Base 21 Unovigesimal Is

368kh21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

642971
368ke21
Six Hundred and Forty-Two Thousand Nine Hundred and Seventy-One in Base 21 Unovigesimal
642972
368kf21
Six Hundred and Forty-Two Thousand Nine Hundred and Seventy-Two in Base 21 Unovigesimal
642973
368kg21
Six Hundred and Forty-Two Thousand Nine Hundred and Seventy-Three in Base 21 Unovigesimal
642975
368ki21
Six Hundred and Forty-Two Thousand Nine Hundred and Seventy-Five in Base 21 Unovigesimal
642976
368kj21
Six Hundred and Forty-Two Thousand Nine Hundred and Seventy-Six in Base 21 Unovigesimal
642977
368kk21
Six Hundred and Forty-Two Thousand Nine Hundred and Seventy-Seven in Base 21 Unovigesimal

Scientific Notation

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

6.42974e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00006783i3ic6hb4c21

The reciprocal of 642974 in Base 21 Unovigesimal.

Palindrome?

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

The number 368kh21 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-two thousand nine hundred and seventy-four is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Six hundred and forty-two thousand nine hundred and seventy-four 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-two thousand nine hundred and seventy-four has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
17
h21
Seventeen in Base 21 Unovigesimal
18911
20ib21
Eightteen Thousand Nine Hundred and Eleven in Base 21 Unovigesimal

Prime Factorization

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

2211 · h211 · 20ib211 = 368kh21

Base Conversions

The number six hundred and forty-two thousand nine hundred and seventy-four in 35 different bases