The Number

405342

Four Hundred and Five Thousand Three Hundred and Forty-Two

In Base 21 Unovigesimal Is

21g3021

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

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

Nearby Numbers

Positive, nonzero integers within three units

405339
21g2i21
Four Hundred and Five Thousand Three Hundred and Thirty-Nine in Base 21 Unovigesimal
405340
21g2j21
Four Hundred and Five Thousand Three Hundred and Forty in Base 21 Unovigesimal
405341
21g2k21
Four Hundred and Five Thousand Three Hundred and Forty-One in Base 21 Unovigesimal
405343
21g3121
Four Hundred and Five Thousand Three Hundred and Forty-Three in Base 21 Unovigesimal
405344
21g3221
Four Hundred and Five Thousand Three Hundred and Forty-Four in Base 21 Unovigesimal
405345
21g3321
Four Hundred and Five Thousand Three 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.

4.05342e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000a1c7kc64384b21

The reciprocal of 405342 in Base 21 Unovigesimal.

Palindrome?

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

The number 21g3021 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 five thousand three hundred and forty-two is a composite number with 24 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 five thousand three hundred and forty-two is a composite number with 24 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 five thousand three hundred and forty-two has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
3217
76421
Three Thousand Two Hundred and Seventeen 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 · 3212 · 7211 · 764211 = 21g3021

Base Conversions

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