The Number

28440

Twenty-Eight Thousand Four Hundred and Forty

In Base 21 Unovigesimal Is

31a621

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

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

Nearby Numbers

Positive, nonzero integers within three units

28437
31a321
Twenty-Eight Thousand Four Hundred and Thirty-Seven in Base 21 Unovigesimal
28438
31a421
Twenty-Eight Thousand Four Hundred and Thirty-Eight in Base 21 Unovigesimal
28439
31a521
Twenty-Eight Thousand Four Hundred and Thirty-Nine in Base 21 Unovigesimal
28441
31a721
Twenty-Eight Thousand Four Hundred and Forty-One in Base 21 Unovigesimal
28442
31a821
Twenty-Eight Thousand Four Hundred and Forty-Two in Base 21 Unovigesimal
28443
31a921
Twenty-Eight Thousand Four Hundred and Forty-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.

2.8440e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0006hce8ee5j18321

The reciprocal of 28440 in Base 21 Unovigesimal.

Palindrome?

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

The number 31a621 is not a palindrome.

Not A Prime Number

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

Twenty-eight thousand four hundred and forty is a composite number with 48 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty-eight thousand four hundred and forty is a composite number with 48 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-eight thousand four hundred and forty has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
79
3g21
Seventy-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

2213 · 3212 · 5211 · 3g211 = 31a621

Base Conversions

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