The Number

18542

Eightteen Thousand Five Hundred and Forty-Two

In Base 21 Unovigesimal Is

200k21

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

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

Nearby Numbers

Positive, nonzero integers within three units

18539
200h21
Eightteen Thousand Five Hundred and Thirty-Nine in Base 21 Unovigesimal
18540
200i21
Eightteen Thousand Five Hundred and Forty in Base 21 Unovigesimal
18541
200j21
Eightteen Thousand Five Hundred and Forty-One in Base 21 Unovigesimal
18543
201021
Eightteen Thousand Five Hundred and Forty-Three in Base 21 Unovigesimal
18544
201121
Eightteen Thousand Five Hundred and Forty-Four in Base 21 Unovigesimal
18545
201221
Eightteen Thousand Five 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.

1.8542e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000aa5aci97f0h6d21

The reciprocal of 18542 in Base 21 Unovigesimal.

Palindrome?

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

The number 200k21 is not a palindrome.

Not A Prime Number

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

Eightteen thousand five hundred and forty-two is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eightteen thousand five hundred and forty-two is a composite number with 8 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 eightteen thousand five hundred and forty-two has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
73
3a21
Seventy-Three in Base 21 Unovigesimal
127
6121
One Hundred and Twenty-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 · 3a211 · 61211 = 200k21

Base Conversions

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