The Number

21555

Twenty-One Thousand Five Hundred and Fifty-Five

In Base 20 Vigesimal Is

2dhf20

The numbers with a 20 subscript use Base 20 Vigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21552
2dhc20
Twenty-One Thousand Five Hundred and Fifty-Two in Base 20 Vigesimal
21553
2dhd20
Twenty-One Thousand Five Hundred and Fifty-Three in Base 20 Vigesimal
21554
2dhe20
Twenty-One Thousand Five Hundred and Fifty-Four in Base 20 Vigesimal
21556
2dhg20
Twenty-One Thousand Five Hundred and Fifty-Six in Base 20 Vigesimal
21557
2dhh20
Twenty-One Thousand Five Hundred and Fifty-Seven in Base 20 Vigesimal
21558
2dhi20
Twenty-One Thousand Five Hundred and Fifty-Eight in Base 20 Vigesimal

Scientific Notation

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

2.1555e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0007892j9a61ajg420

The reciprocal of 21555 in Base 20 Vigesimal.

Palindrome?

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

The number 2dhf20 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand five hundred and fifty-five is a composite number with 12 total factors (including 1 and itself).   See primes in Base 20 Vigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand five hundred and fifty-five is a composite number with 12 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-one thousand five hundred and fifty-five has the following 3 prime factors:

3
320
Three in Base 20 Vigesimal
5
520
Five in Base 20 Vigesimal
479
13j20
Four Hundred and Seventy-Nine in Base 20 Vigesimal

Prime Factorization

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

3202 · 5201 · 13j201 = 2dhf20

Base Conversions

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