The Number

221990

Two Hundred and Twenty-One Thousand Nine Hundred and Ninety

In Base 12 Duodecimal Is

a857212

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

221987
a856b12
Two Hundred and Twenty-One Thousand Nine Hundred and Eighty-Seven in Base 12 Duodecimal
221988
a857012
Two Hundred and Twenty-One Thousand Nine Hundred and Eighty-Eight in Base 12 Duodecimal
221989
a857112
Two Hundred and Twenty-One Thousand Nine Hundred and Eighty-Nine in Base 12 Duodecimal
221991
a857312
Two Hundred and Twenty-One Thousand Nine Hundred and Ninety-One in Base 12 Duodecimal
221992
a857412
Two Hundred and Twenty-One Thousand Nine Hundred and Ninety-Two in Base 12 Duodecimal
221993
a857512
Two Hundred and Twenty-One Thousand Nine Hundred and Ninety-Three in Base 12 Duodecimal

Scientific Notation

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

2.21990e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00001154b373a0b7703412

The reciprocal of 221990 in Base 12 Duodecimal.

Palindrome?

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

The number a857212 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-one thousand nine hundred and ninety is a composite number with 16 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Two hundred and twenty-one thousand nine hundred and ninety is a composite number with 16 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-one thousand nine hundred and ninety has the following 4 prime factors:

2
212
Two in Base 12 Duodecimal
5
512
Five in Base 12 Duodecimal
79
6712
Seventy-Nine in Base 12 Duodecimal
281
1b512
Two Hundred and Eighty-One in Base 12 Duodecimal

Prime Factorization

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

2121 · 5121 · 67121 · 1b5121 = a857212

Base Conversions

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