The Number

20390

Twenty Thousand Three Hundred and Ninety

In Base 21 Unovigesimal Is

244k21

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

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

Nearby Numbers

Positive, nonzero integers within three units

20387
244h21
Twenty Thousand Three Hundred and Eighty-Seven in Base 21 Unovigesimal
20388
244i21
Twenty Thousand Three Hundred and Eighty-Eight in Base 21 Unovigesimal
20389
244j21
Twenty Thousand Three Hundred and Eighty-Nine in Base 21 Unovigesimal
20391
245021
Twenty Thousand Three Hundred and Ninety-One in Base 21 Unovigesimal
20392
245121
Twenty Thousand Three Hundred and Ninety-Two in Base 21 Unovigesimal
20393
245221
Twenty Thousand Three Hundred and Ninety-Three in Base 21 Unovigesimal

Scientific Notation

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

2.0390e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0009b65k0eag0g5b21

The reciprocal of 20390 in Base 21 Unovigesimal.

Palindrome?

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

The number 244k21 is not a palindrome.

Not A Prime Number

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

Twenty thousand three hundred and ninety 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.

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

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
2039
4d221
Two Thousand and Thirty-Nine 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 · 5211 · 4d2211 = 244k21

Base Conversions

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