The Number

21161

Twenty-One Thousand One Hundred and Sixty-One

In Base 15 Quindecimal Is

640b15

The numbers with a 15 subscript use Base 15 Quindecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21158
640815
Twenty-One Thousand One Hundred and Fifty-Eight in Base 15 Quindecimal
21159
640915
Twenty-One Thousand One Hundred and Fifty-Nine in Base 15 Quindecimal
21160
640a15
Twenty-One Thousand One Hundred and Sixty in Base 15 Quindecimal
21162
640c15
Twenty-One Thousand One Hundred and Sixty-Two in Base 15 Quindecimal
21163
640d15
Twenty-One Thousand One Hundred and Sixty-Three in Base 15 Quindecimal
21164
640e15
Twenty-One Thousand One Hundred and Sixty-Four in Base 15 Quindecimal

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.

0.00025d43d0eb334ae15

The reciprocal of 21161 in Base 15 Quindecimal.

Palindrome?

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

The number 640b15 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 15 Quindecimal

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
715
Seven in Base 15 Quindecimal
3023
d6815
Three Thousand and Twenty-Three in Base 15 Quindecimal

Prime Factorization

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

7151 · d68151 = 640b15

Base Conversions

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