The Number

18165

Eightteen Thousand One Hundred and Sixty-Five

In Base 21 Unovigesimal Is

1k4021

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

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

Nearby Numbers

Positive, nonzero integers within three units

18162
1k3i21
Eightteen Thousand One Hundred and Sixty-Two in Base 21 Unovigesimal
18163
1k3j21
Eightteen Thousand One Hundred and Sixty-Three in Base 21 Unovigesimal
18164
1k3k21
Eightteen Thousand One Hundred and Sixty-Four in Base 21 Unovigesimal
18166
1k4121
Eightteen Thousand One Hundred and Sixty-Six in Base 21 Unovigesimal
18167
1k4221
Eightteen Thousand One Hundred and Sixty-Seven in Base 21 Unovigesimal
18168
1k4321
Eightteen Thousand One Hundred and Sixty-Eight in Base 21 Unovigesimal

Scientific Notation

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

1.8165e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000aehac5k8g0kj821

The reciprocal of 18165 in Base 21 Unovigesimal.

Palindrome?

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

The number 1k4021 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 sixty-five is a composite number with 16 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 sixty-five is a composite number with 16 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 sixty-five has the following 4 prime factors:

3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
173
8521
One Hundred and Seventy-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

3211 · 5211 · 7211 · 85211 = 1k4021

Base Conversions

The number eightteen thousand one hundred and sixty-five in 35 different bases