The Number

18157

Eightteen Thousand One Hundred and Fifty-Seven

In Base 21 Unovigesimal Is

1k3d21

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

For more familiar numbers: See Eightteen Thousand One Hundred and Fifty-Seven in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

18154
1k3a21
Eightteen Thousand One Hundred and Fifty-Four in Base 21 Unovigesimal
18155
1k3b21
Eightteen Thousand One Hundred and Fifty-Five in Base 21 Unovigesimal
18156
1k3c21
Eightteen Thousand One Hundred and Fifty-Six in Base 21 Unovigesimal
18158
1k3e21
Eightteen Thousand One Hundred and Fifty-Eight in Base 21 Unovigesimal
18159
1k3f21
Eightteen Thousand One Hundred and Fifty-Nine in Base 21 Unovigesimal
18160
1k3g21
Eightteen Thousand One Hundred and Sixty in Base 21 Unovigesimal

Scientific Notation

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

1.8157e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000aejc5edafja9e21

The reciprocal of 18157 in Base 21 Unovigesimal.

Palindrome?

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

The number 1k3d21 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 one hundred and fifty-seven 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.

Eightteen thousand one hundred and fifty-seven 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 eightteen thousand one hundred and fifty-seven has the following 2 prime factors:

67
3421
Sixty-Seven in Base 21 Unovigesimal
271
cj21
Two Hundred and Seventy-One in Base 21 Unovigesimal

Prime Factorization

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

34211 · cj211 = 1k3d21

Base Conversions

The number eightteen thousand one hundred and fifty-seven in 35 different bases