The Number

42001

Forty-Two Thousand and One

In Base 21 Unovigesimal Is

4b5121

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

For more familiar numbers: See Forty-Two Thousand and One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

41998
4b4j21
Forty-One Thousand Nine Hundred and Ninety-Eight in Base 21 Unovigesimal
41999
4b4k21
Forty-One Thousand Nine Hundred and Ninety-Nine in Base 21 Unovigesimal
42000
4b5021
Forty-Two Thousand in Base 21 Unovigesimal
42002
4b5221
Forty-Two Thousand and Two in Base 21 Unovigesimal
42003
4b5321
Forty-Two Thousand and Three in Base 21 Unovigesimal
42004
4b5421
Forty-Two Thousand and Four in Base 21 Unovigesimal

Scientific Notation

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

4.2001e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004d500h8gh32b321

The reciprocal of 42001 in Base 21 Unovigesimal.

Palindrome?

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

The number 4b5121 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 and one is a composite number with 4 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 and one is a composite number with 4 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 and one has the following 2 prime factors:

97
4d21
Ninety-Seven in Base 21 Unovigesimal
433
kd21
Four Hundred and Thirty-Three in Base 21 Unovigesimal

Prime Factorization

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

4d211 · kd211 = 4b5121

Base Conversions

The number forty-two thousand and one in 35 different bases