The Number

13215

Thirteen Thousand Two Hundred and Fifteen

In Base 21 Unovigesimal Is

18k621

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

For more familiar numbers: See Thirteen Thousand Two Hundred and Fifteen in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

13212
18k321
Thirteen Thousand Two Hundred and Twelve in Base 21 Unovigesimal
13213
18k421
Thirteen Thousand Two Hundred and Thirteen in Base 21 Unovigesimal
13214
18k521
Thirteen Thousand Two Hundred and Fourteen in Base 21 Unovigesimal
13216
18k721
Thirteen Thousand Two Hundred and Sixteen in Base 21 Unovigesimal
13217
18k821
Thirteen Thousand Two Hundred and Seventeen in Base 21 Unovigesimal
13218
18k921
Thirteen Thousand Two Hundred and Eightteen in Base 21 Unovigesimal

Scientific Notation

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

1.3215e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000ef114f6bhkd421

The reciprocal of 13215 in Base 21 Unovigesimal.

Palindrome?

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

The number 18k621 is not a palindrome.

Not A Prime Number

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

Thirteen thousand two hundred and fifteen 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.

Thirteen thousand two hundred and fifteen 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 thirteen thousand two hundred and fifteen has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
881
1kk21
Eight Hundred and Eighty-One in Base 21 Unovigesimal

Prime Factorization

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

3211 · 5211 · 1kk211 = 18k621

Base Conversions

The number thirteen thousand two hundred and fifteen in 35 different bases