The Number

220991

Two Hundred and Twenty Thousand Nine Hundred and Ninety-One

In Base 21 Unovigesimal Is

12i2821

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

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

Nearby Numbers

Positive, nonzero integers within three units

220988
12i2521
Two Hundred and Twenty Thousand Nine Hundred and Eighty-Eight in Base 21 Unovigesimal
220989
12i2621
Two Hundred and Twenty Thousand Nine Hundred and Eighty-Nine in Base 21 Unovigesimal
220990
12i2721
Two Hundred and Twenty Thousand Nine Hundred and Ninety in Base 21 Unovigesimal
220992
12i2921
Two Hundred and Twenty Thousand Nine Hundred and Ninety-Two in Base 21 Unovigesimal
220993
12i2a21
Two Hundred and Twenty Thousand Nine Hundred and Ninety-Three in Base 21 Unovigesimal
220994
12i2b21
Two Hundred and Twenty Thousand Nine 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.

2.20991e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ia212f6bfjh721

The reciprocal of 220991 in Base 21 Unovigesimal.

Palindrome?

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

The number 12i2821 is not a palindrome.

Not A Prime Number

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

Two hundred and twenty thousand nine hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two hundred and twenty thousand nine hundred and ninety-one is a composite number with 4 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 two hundred and twenty thousand nine hundred and ninety-one has the following 2 prime factors:

383
i521
Three Hundred and Eighty-Three in Base 21 Unovigesimal
577
16a21
Five Hundred and Seventy-Seven in Base 21 Unovigesimal

Prime Factorization

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

i5211 · 16a211 = 12i2821

Base Conversions

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