Nearby Numbers

Positive, nonzero integers within three units

21037

25eg21

Twenty-One Thousand and Thirty-Seven in Base 21 Unovigesimal

21038

25eh21

Twenty-One Thousand and Thirty-Eight in Base 21 Unovigesimal

21039

25ei21

Twenty-One Thousand and Thirty-Nine in Base 21 Unovigesimal

21041

25ek21

Twenty-One Thousand and Forty-One in Base 21 Unovigesimal

21042

25f021

Twenty-One Thousand and Forty-Two in Base 21 Unovigesimal

21043

25f121

Twenty-One Thousand 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.

2.1040e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000952718g9i24k521

The reciprocal of 21040 in Base 21 Unovigesimal.

Palindrome?

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

The number 25ej21 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 and forty is a composite number with 20 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand and forty is a composite number with 20 total factors (including 1 and itself).

Prime Factors

2

221

Two in Base 21 Unovigesimal

5

521

Five in Base 21 Unovigesimal

263

cb21

Two Hundred and Sixty-Three in Base 21 Unovigesimal

Prime Factorization

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

2214 · 5211 · cb211 = 25ej21

Base Conversions

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