The Number

221391

Two Hundred and Twenty-One Thousand Three Hundred and Ninety-One

In Base 12 Duodecimal Is

a815312

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

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

Nearby Numbers

Positive, nonzero integers within three units

221388
a815012
Two Hundred and Twenty-One Thousand Three Hundred and Eighty-Eight in Base 12 Duodecimal
221389
a815112
Two Hundred and Twenty-One Thousand Three Hundred and Eighty-Nine in Base 12 Duodecimal
221390
a815212
Two Hundred and Twenty-One Thousand Three Hundred and Ninety in Base 12 Duodecimal
221392
a815412
Two Hundred and Twenty-One Thousand Three Hundred and Ninety-Two in Base 12 Duodecimal
221393
a815512
Two Hundred and Twenty-One Thousand Three Hundred and Ninety-Three in Base 12 Duodecimal
221394
a815612
Two Hundred and Twenty-One Thousand Three Hundred and Ninety-Four in Base 12 Duodecimal

Scientific Notation

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

2.21391e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000115a2231634698812

The reciprocal of 221391 in Base 12 Duodecimal.

Palindrome?

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

The number a815312 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 three hundred and ninety-one is a composite number with 12 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 three hundred and ninety-one is a composite number with 12 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 three hundred and ninety-one has the following 3 prime factors:

3
312
Three in Base 12 Duodecimal
17
1512
Seventeen in Base 12 Duodecimal
1447
a0712
One Thousand Four Hundred and Forty-Seven in Base 12 Duodecimal

Prime Factorization

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

3122 · 15121 · a07121 = a815312

Base Conversions

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