The Number

20391

Twenty Thousand Three Hundred and Ninety-One

In Base 9 Nonary Is

308669

The numbers with a 9 subscript use Base 9 Nonary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

20388
308639
Twenty Thousand Three Hundred and Eighty-Eight in Base 9 Nonary
20389
308649
Twenty Thousand Three Hundred and Eighty-Nine in Base 9 Nonary
20390
308659
Twenty Thousand Three Hundred and Ninety in Base 9 Nonary
20392
308679
Twenty Thousand Three Hundred and Ninety-Two in Base 9 Nonary
20393
308689
Twenty Thousand Three Hundred and Ninety-Three in Base 9 Nonary
20394
308709
Twenty Thousand Three Hundred and Ninety-Four in Base 9 Nonary

Scientific Notation

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

2.0391e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000028050521644740369

The reciprocal of 20391 in Base 9 Nonary.

Palindrome?

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

The number 308669 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-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

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

3
39
Three in Base 9 Nonary
7
79
Seven in Base 9 Nonary
971
12889
Nine Hundred and Seventy-One in Base 9 Nonary

Prime Factorization

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

391 · 791 · 128891 = 308669

Base Conversions

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