The Number

21281

Twenty-One Thousand Two Hundred and Eighty-One

In Base 12 Duodecimal Is

1039512

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

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

Nearby Numbers

Positive, nonzero integers within three units

21278
1039212
Twenty-One Thousand Two Hundred and Seventy-Eight in Base 12 Duodecimal
21279
1039312
Twenty-One Thousand Two Hundred and Seventy-Nine in Base 12 Duodecimal
21280
1039412
Twenty-One Thousand Two Hundred and Eighty in Base 12 Duodecimal
21282
1039612
Twenty-One Thousand Two Hundred and Eighty-Two in Base 12 Duodecimal
21283
1039712
Twenty-One Thousand Two Hundred and Eighty-Three in Base 12 Duodecimal
21284
1039812
Twenty-One Thousand Two Hundred and Eighty-Four in Base 12 Duodecimal

Scientific Notation

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

2.1281e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000b838b5a234259b112

The reciprocal of 21281 in Base 12 Duodecimal.

Palindrome?

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

The number 1039512 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 two hundred and eighty-one is a composite number with 4 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 two hundred and eighty-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 two hundred and eighty-one has the following 2 prime factors:

13
1112
Thirteen in Base 12 Duodecimal
1637
b4512
One Thousand Six Hundred and Thirty-Seven in Base 12 Duodecimal

Prime Factorization

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

11121 · b45121 = 1039512

Base Conversions

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