The Number

42390

Forty-Two Thousand Three Hundred and Ninety

In Base 21 Unovigesimal Is

4c2c21

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

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

Nearby Numbers

Positive, nonzero integers within three units

42387
4c2921
Forty-Two Thousand Three Hundred and Eighty-Seven in Base 21 Unovigesimal
42388
4c2a21
Forty-Two Thousand Three Hundred and Eighty-Eight in Base 21 Unovigesimal
42389
4c2b21
Forty-Two Thousand Three Hundred and Eighty-Nine in Base 21 Unovigesimal
42391
4c2d21
Forty-Two Thousand Three Hundred and Ninety-One in Base 21 Unovigesimal
42392
4c2e21
Forty-Two Thousand Three Hundred and Ninety-Two in Base 21 Unovigesimal
42393
4c2f21
Forty-Two Thousand Three Hundred and Ninety-Three in Base 21 Unovigesimal

Scientific Notation

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

4.2390e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004c75b03de786g21

The reciprocal of 42390 in Base 21 Unovigesimal.

Palindrome?

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

The number 4c2c21 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 three hundred and ninety is a composite number with 32 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 three hundred and ninety is a composite number with 32 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 three hundred and ninety has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
157
7a21
One 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

2211 · 3213 · 5211 · 7a211 = 4c2c21

Base Conversions

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