The Number

221221

Two Hundred and Twenty-One Thousand Two Hundred and Twenty-One

In Base 8 Octal Is

6600458

The numbers with a 8 subscript use Base 8 Octal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

221218
6600428
Two Hundred and Twenty-One Thousand Two Hundred and Eightteen in Base 8 Octal
221219
6600438
Two Hundred and Twenty-One Thousand Two Hundred and Nineteen in Base 8 Octal
221220
6600448
Two Hundred and Twenty-One Thousand Two Hundred and Twenty in Base 8 Octal
221222
6600468
Two Hundred and Twenty-One Thousand Two Hundred and Twenty-Two in Base 8 Octal
221223
6600478
Two Hundred and Twenty-One Thousand Two Hundred and Twenty-Three in Base 8 Octal
221224
6600508
Two Hundred and Twenty-One Thousand Two Hundred and Twenty-Four in Base 8 Octal

Scientific Notation

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

2.21221e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000001136555161237615458

The reciprocal of 221221 in Base 8 Octal.

Palindrome?

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

The number 6600458 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 two hundred and twenty-one is a composite number with 24 total factors (including 1 and itself).   See primes in Base 8 Octal

A Composite

Composites have more than just these two factors.

Two hundred and twenty-one thousand two hundred and twenty-one is a composite number with 24 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 two hundred and twenty-one has the following 4 prime factors:

7
78
Seven in Base 8 Octal
11
138
Eleven in Base 8 Octal
13
158
Thirteen in Base 8 Octal
17
218
Seventeen in Base 8 Octal

Prime Factorization

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

781 · 1381 · 1582 · 2181 = 6600458

Base Conversions

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