The Number

21161

Twenty-One Thousand One Hundred and Sixty-One

Nearby Numbers

Positive, nonzero integers within three units

21158
Twenty-One Thousand One Hundred and Fifty-Eight
21159
Twenty-One Thousand One Hundred and Fifty-Nine
21160
Twenty-One Thousand One Hundred and Sixty
21162
Twenty-One Thousand One Hundred and Sixty-Two
21163
Twenty-One Thousand One Hundred and Sixty-Three
21164
Twenty-One Thousand One Hundred and Sixty-Four

Scientific Notation

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

2.1161e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004725674590047729

The reciprocal of 21161.

Palindrome?

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

The number 21161 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand one hundred and sixty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand one hundred and sixty-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 twenty-one thousand one hundred and sixty-one has the following 2 prime factors:

7
Seven
3023
Three Thousand and Twenty-Three

Prime Factorization

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

71 · 30231 = 21161

Base Conversions

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