The Number

21291

Twenty-One Thousand Two Hundred and Ninety-One

In Base 21 Unovigesimal Is

265i21

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

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

Nearby Numbers

Positive, nonzero integers within three units

21288
265f21
Twenty-One Thousand Two Hundred and Eighty-Eight in Base 21 Unovigesimal
21289
265g21
Twenty-One Thousand Two Hundred and Eighty-Nine in Base 21 Unovigesimal
21290
265h21
Twenty-One Thousand Two Hundred and Ninety in Base 21 Unovigesimal
21292
265j21
Twenty-One Thousand Two Hundred and Ninety-Two in Base 21 Unovigesimal
21293
265k21
Twenty-One Thousand Two Hundred and Ninety-Three in Base 21 Unovigesimal
21294
266021
Twenty-One Thousand Two Hundred and Ninety-Four in Base 21 Unovigesimal

Scientific Notation

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

2.1291e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00092h5if1j1e2621

The reciprocal of 21291 in Base 21 Unovigesimal.

Palindrome?

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

The number 265i21 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 two hundred and ninety-one is a composite number with 8 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 two hundred and ninety-one is a composite number with 8 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 two hundred and ninety-one has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
47
2521
Forty-Seven in Base 21 Unovigesimal
151
7421
One Hundred and Fifty-One in Base 21 Unovigesimal

Prime Factorization

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

3211 · 25211 · 74211 = 265i21

Base Conversions

The number twenty-one thousand two hundred and ninety-one in 35 different bases