The Number

21660

Twenty-One Thousand Six Hundred and Sixty

In Base 12 Duodecimal Is

1065012

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

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

Nearby Numbers

Positive, nonzero integers within three units

21657
1064912
Twenty-One Thousand Six Hundred and Fifty-Seven in Base 12 Duodecimal
21658
1064a12
Twenty-One Thousand Six Hundred and Fifty-Eight in Base 12 Duodecimal
21659
1064b12
Twenty-One Thousand Six Hundred and Fifty-Nine in Base 12 Duodecimal
21661
1065112
Twenty-One Thousand Six Hundred and Sixty-One in Base 12 Duodecimal
21662
1065212
Twenty-One Thousand Six Hundred and Sixty-Two in Base 12 Duodecimal
21663
1065312
Twenty-One Thousand Six Hundred and Sixty-Three in Base 12 Duodecimal

Scientific Notation

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

2.1660e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000b5a3500a645170a12

The reciprocal of 21660 in Base 12 Duodecimal.

Palindrome?

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

The number 1065012 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 six hundred and sixty is a composite number with 36 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand six hundred and sixty is a composite number with 36 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 six hundred and sixty has the following 4 prime factors:

2
212
Two in Base 12 Duodecimal
3
312
Three in Base 12 Duodecimal
5
512
Five in Base 12 Duodecimal
19
1712
Nineteen in Base 12 Duodecimal

Prime Factorization

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

2122 · 3121 · 5121 · 17122 = 1065012

Base Conversions

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