The Number

402742

Four Hundred and Two Thousand Seven Hundred and Forty-Two

In Base 21 Unovigesimal Is

21a5421

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

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

Nearby Numbers

Positive, nonzero integers within three units

402739
21a5121
Four Hundred and Two Thousand Seven Hundred and Thirty-Nine in Base 21 Unovigesimal
402740
21a5221
Four Hundred and Two Thousand Seven Hundred and Forty in Base 21 Unovigesimal
402741
21a5321
Four Hundred and Two Thousand Seven Hundred and Forty-One in Base 21 Unovigesimal
402743
21a5521
Four Hundred and Two Thousand Seven Hundred and Forty-Three in Base 21 Unovigesimal
402744
21a5621
Four Hundred and Two Thousand Seven Hundred and Forty-Four in Base 21 Unovigesimal
402745
21a5721
Four Hundred and Two Thousand Seven Hundred and Forty-Five in Base 21 Unovigesimal

Scientific Notation

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

4.02742e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000a2k17h35gee321

The reciprocal of 402742 in Base 21 Unovigesimal.

Palindrome?

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

The number 21a5421 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Four hundred and two thousand seven hundred and forty-two 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.

Four hundred and two thousand seven hundred and forty-two 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 four hundred and two thousand seven hundred and forty-two has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
79
3g21
Seventy-Nine in Base 21 Unovigesimal
2549
5g821
Two Thousand Five Hundred and Forty-Nine 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 · 3g211 · 5g8211 = 21a5421

Base Conversions

The number four hundred and two thousand seven hundred and forty-two in 35 different bases