The Number

42042

Forty-Two Thousand and Forty-Two

In Base 21 Unovigesimal Is

4b7021

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

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

Nearby Numbers

Positive, nonzero integers within three units

42039
4b6i21
Forty-Two Thousand and Thirty-Nine in Base 21 Unovigesimal
42040
4b6j21
Forty-Two Thousand and Forty in Base 21 Unovigesimal
42041
4b6k21
Forty-Two Thousand and Forty-One in Base 21 Unovigesimal
42043
4b7121
Forty-Two Thousand and Forty-Three in Base 21 Unovigesimal
42044
4b7221
Forty-Two Thousand and Forty-Four in Base 21 Unovigesimal
42045
4b7321
Forty-Two Thousand 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.

4.2042e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004d304d304d30521

The reciprocal of 42042 in Base 21 Unovigesimal.

Palindrome?

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

The number 4b7021 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 forty-two is a composite number with 48 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 forty-two is a composite number with 48 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 forty-two has the following 5 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
13
d21
Thirteen 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 · 3211 · 7212 · b211 · d211 = 4b7021

Base Conversions

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