The Number

81397

Eighty-One Thousand Three Hundred and Ninety-Seven

In Base 15 Quindecimal Is

191b715

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

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

Nearby Numbers

Positive, nonzero integers within three units

81394
191b415
Eighty-One Thousand Three Hundred and Ninety-Four in Base 15 Quindecimal
81395
191b515
Eighty-One Thousand Three Hundred and Ninety-Five in Base 15 Quindecimal
81396
191b615
Eighty-One Thousand Three Hundred and Ninety-Six in Base 15 Quindecimal
81398
191b815
Eighty-One Thousand Three Hundred and Ninety-Eight in Base 15 Quindecimal
81399
191b915
Eighty-One Thousand Three Hundred and Ninety-Nine in Base 15 Quindecimal
81400
191ba15
Eighty-One Thousand Four Hundred in Base 15 Quindecimal

Scientific Notation

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

8.1397e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000094e148369767db15

The reciprocal of 81397 in Base 15 Quindecimal.

Palindrome?

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

The number 191b715 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand three hundred and ninety-seven is a composite number with 4 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand three hundred and ninety-seven 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 eighty-one thousand three hundred and ninety-seven has the following 2 prime factors:

23
1815
Twenty-Three in Base 15 Quindecimal
3539
10ae15
Three Thousand Five Hundred and Thirty-Nine in Base 15 Quindecimal

Prime Factorization

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

18151 · 10ae151 = 191b715

Base Conversions

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