The Number

21017

Twenty-One Thousand and Seventeen

In Base 21 Unovigesimal Is

25dh21

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

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

Nearby Numbers

Positive, nonzero integers within three units

21014
25de21
Twenty-One Thousand and Fourteen in Base 21 Unovigesimal
21015
25df21
Twenty-One Thousand and Fifteen in Base 21 Unovigesimal
21016
25dg21
Twenty-One Thousand and Sixteen in Base 21 Unovigesimal
21018
25di21
Twenty-One Thousand and Eightteen in Base 21 Unovigesimal
21019
25dj21
Twenty-One Thousand and Nineteen in Base 21 Unovigesimal
21020
25dk21
Twenty-One Thousand and Twenty in Base 21 Unovigesimal

Scientific Notation

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

2.1017e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000956gfed17hic21

The reciprocal of 21017 in Base 21 Unovigesimal.

Palindrome?

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

The number 25dh21 is not a palindrome.

A Prime Number

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

Twenty-one thousand and seventeen is the 2364th prime number.   See primes in Base 21 Unovigesimal

Not A Composite

Composites have more than just these two factors.

Twenty-One Thousand and Seventeen is not a composite number because it has exactly two factors: One and Twenty-One Thousand and Seventeen

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 and seventeen has the following 1 prime factor:

21017
25dh21
Twenty-One Thousand and Seventeen in Base 21 Unovigesimal

Prime Factorization

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

25dh211 = 25dh21

Base Conversions

The number twenty-one thousand and seventeen in 35 different bases