The Number

20421

Twenty Thousand Four Hundred and Twenty-One

In Base 9 Nonary Is

310109

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

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

Nearby Numbers

Positive, nonzero integers within three units

20418
310069
Twenty Thousand Four Hundred and Eightteen in Base 9 Nonary
20419
310079
Twenty Thousand Four Hundred and Nineteen in Base 9 Nonary
20420
310089
Twenty Thousand Four Hundred and Twenty in Base 9 Nonary
20422
310119
Twenty Thousand Four Hundred and Twenty-Two in Base 9 Nonary
20423
310129
Twenty Thousand Four Hundred and Twenty-Three in Base 9 Nonary
20424
310139
Twenty Thousand Four Hundred and Twenty-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.

2.0421e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00002801860288802831049

The reciprocal of 20421 in Base 9 Nonary.

Palindrome?

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

The number 310109 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 four hundred and twenty-one is a composite number with 6 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

Twenty thousand four hundred and twenty-one is a composite number with 6 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 four hundred and twenty-one has the following 2 prime factors:

3
39
Three in Base 9 Nonary
2269
31019
Two Thousand Two Hundred and Sixty-Nine in Base 9 Nonary

Prime Factorization

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

392 · 310191 = 310109

Base Conversions

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