The Number

21398

Twenty-One Thousand Three Hundred and Ninety-Eight

In Base 15 Quindecimal Is

651815

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

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

Nearby Numbers

Positive, nonzero integers within three units

21395
651515
Twenty-One Thousand Three Hundred and Ninety-Five in Base 15 Quindecimal
21396
651615
Twenty-One Thousand Three Hundred and Ninety-Six in Base 15 Quindecimal
21397
651715
Twenty-One Thousand Three Hundred and Ninety-Seven in Base 15 Quindecimal
21399
651915
Twenty-One Thousand Three Hundred and Ninety-Nine in Base 15 Quindecimal
21400
651a15
Twenty-One Thousand Four Hundred in Base 15 Quindecimal
21401
651b15
Twenty-One Thousand Four Hundred and One in Base 15 Quindecimal

Scientific Notation

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

2.1398e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0002574c687ad44a2715

The reciprocal of 21398 in Base 15 Quindecimal.

Palindrome?

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

The number 651815 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 ninety-eight is a composite number with 8 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 three hundred and ninety-eight 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 ninety-eight has the following 3 prime factors:

2
215
Two in Base 15 Quindecimal
13
d15
Thirteen in Base 15 Quindecimal
823
39d15
Eight Hundred 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

2151 · d151 · 39d151 = 651815

Base Conversions

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