The Number

42405

Forty-Two Thousand Four Hundred and Five

In Base 21 Unovigesimal Is

4c3621

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

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

Nearby Numbers

Positive, nonzero integers within three units

42402
4c3321
Forty-Two Thousand Four Hundred and Two in Base 21 Unovigesimal
42403
4c3421
Forty-Two Thousand Four Hundred and Three in Base 21 Unovigesimal
42404
4c3521
Forty-Two Thousand Four Hundred and Four in Base 21 Unovigesimal
42406
4c3721
Forty-Two Thousand Four Hundred and Six in Base 21 Unovigesimal
42407
4c3821
Forty-Two Thousand Four Hundred and Seven in Base 21 Unovigesimal
42408
4c3921
Forty-Two Thousand Four Hundred and Eight in Base 21 Unovigesimal

Scientific Notation

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

4.2405e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004c6ba830eiak421

The reciprocal of 42405 in Base 21 Unovigesimal.

Palindrome?

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

The number 4c3621 is not a palindrome.

Not A Prime Number

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

Forty-two thousand four hundred and five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Forty-two thousand four hundred and five is a composite number with 16 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 forty-two thousand four hundred and five has the following 4 prime factors:

3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
257
c521
Two Hundred and Fifty-Seven in Base 21 Unovigesimal

Prime Factorization

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

3211 · 5211 · b211 · c5211 = 4c3621

Base Conversions

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