The Number

23990

Twenty-Three Thousand Nine Hundred and Ninety

In Base 18 Octodecimal Is

420e18

The numbers with a 18 subscript use Base 18 Octodecimal notation.

For more familiar numbers: See Twenty-Three Thousand Nine Hundred and Ninety in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

23987
420b18
Twenty-Three Thousand Nine Hundred and Eighty-Seven in Base 18 Octodecimal
23988
420c18
Twenty-Three Thousand Nine Hundred and Eighty-Eight in Base 18 Octodecimal
23989
420d18
Twenty-Three Thousand Nine Hundred and Eighty-Nine in Base 18 Octodecimal
23991
420f18
Twenty-Three Thousand Nine Hundred and Ninety-One in Base 18 Octodecimal
23992
420g18
Twenty-Three Thousand Nine Hundred and Ninety-Two in Base 18 Octodecimal
23993
420h18
Twenty-Three Thousand Nine Hundred and Ninety-Three in Base 18 Octodecimal

Scientific Notation

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

2.3990e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00046dde7ag163b7818

The reciprocal of 23990 in Base 18 Octodecimal.

Palindrome?

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

The number 420e18 is not a palindrome.

Not A Prime Number

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

Twenty-three thousand nine hundred and ninety is a composite number with 8 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty-three thousand nine hundred and ninety 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 twenty-three thousand nine hundred and ninety has the following 3 prime factors:

2
218
Two in Base 18 Octodecimal
5
518
Five in Base 18 Octodecimal
2399
77518
Two Thousand Three Hundred and Ninety-Nine in Base 18 Octodecimal

Prime Factorization

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

2181 · 5181 · 775181 = 420e18

Base Conversions

The number twenty-three thousand nine hundred and ninety in 35 different bases