The Number

20489

Twenty Thousand Four Hundred and Eighty-Nine

In Base 21 Unovigesimal Is

249e21

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

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

Nearby Numbers

Positive, nonzero integers within three units

20486
249b21
Twenty Thousand Four Hundred and Eighty-Six in Base 21 Unovigesimal
20487
249c21
Twenty Thousand Four Hundred and Eighty-Seven in Base 21 Unovigesimal
20488
249d21
Twenty Thousand Four Hundred and Eighty-Eight in Base 21 Unovigesimal
20490
249f21
Twenty Thousand Four Hundred and Ninety in Base 21 Unovigesimal
20491
249g21
Twenty Thousand Four Hundred and Ninety-One in Base 21 Unovigesimal
20492
249h21
Twenty Thousand Four Hundred and Ninety-Two in Base 21 Unovigesimal

Scientific Notation

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

2.0489e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0009a6k31a3ji42621

The reciprocal of 20489 in Base 21 Unovigesimal.

Palindrome?

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

The number 249e21 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 eighty-nine is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty thousand four hundred and eighty-nine is a composite number with 4 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 eighty-nine has the following 2 prime factors:

7
721
Seven in Base 21 Unovigesimal
2927
6d821
Two Thousand Nine Hundred and Twenty-Seven in Base 21 Unovigesimal

Prime Factorization

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

7211 · 6d8211 = 249e21

Base Conversions

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