The Number

221990

Two Hundred and Twenty-One Thousand Nine Hundred and Ninety

In Base 13 Tridecimal Is

7a07213

The numbers with a 13 subscript use Base 13 Tridecimal 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
7a06c13
Two Hundred and Twenty-One Thousand Nine Hundred and Eighty-Seven in Base 13 Tridecimal
221988
7a07013
Two Hundred and Twenty-One Thousand Nine Hundred and Eighty-Eight in Base 13 Tridecimal
221989
7a07113
Two Hundred and Twenty-One Thousand Nine Hundred and Eighty-Nine in Base 13 Tridecimal
221991
7a07313
Two Hundred and Twenty-One Thousand Nine Hundred and Ninety-One in Base 13 Tridecimal
221992
7a07413
Two Hundred and Twenty-One Thousand Nine Hundred and Ninety-Two in Base 13 Tridecimal
221993
7a07513
Two Hundred and Twenty-One Thousand Nine Hundred and Ninety-Three in Base 13 Tridecimal

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.

0.000018988222ba0895613

The reciprocal of 221990 in Base 13 Tridecimal.

Palindrome?

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

The number 7a07213 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 13 Tridecimal

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
213
Two in Base 13 Tridecimal
5
513
Five in Base 13 Tridecimal
79
6113
Seventy-Nine in Base 13 Tridecimal
281
18813
Two Hundred and Eighty-One in Base 13 Tridecimal

Prime Factorization

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

2131 · 5131 · 61131 · 188131 = 7a07213

Base Conversions

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