The Number

21307

Twenty-One Thousand Three Hundred and Seven

In Base 21 Unovigesimal Is

266d21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21304
266a21
Twenty-One Thousand Three Hundred and Four in Base 21 Unovigesimal
21305
266b21
Twenty-One Thousand Three Hundred and Five in Base 21 Unovigesimal
21306
266c21
Twenty-One Thousand Three Hundred and Six in Base 21 Unovigesimal
21308
266e21
Twenty-One Thousand Three Hundred and Eight in Base 21 Unovigesimal
21309
266f21
Twenty-One Thousand Three Hundred and Nine in Base 21 Unovigesimal
21310
266g21
Twenty-One Thousand Three Hundred and Ten in Base 21 Unovigesimal

Scientific Notation

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

2.1307e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00092e57f1ejkc3c21

The reciprocal of 21307 in Base 21 Unovigesimal.

Palindrome?

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

The number 266d21 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 three hundred and seven is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand three hundred and seven is a composite number with 8 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 three hundred and seven has the following 3 prime factors:

11
b21
Eleven in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
149
7221
One Hundred and Forty-Nine in Base 21 Unovigesimal

Prime Factorization

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

b211 · d211 · 72211 = 266d21

Base Conversions

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