The Number

15981

Fifteen Thousand Nine Hundred and Eighty-One

In Base 9 Nonary Is

238269

The numbers with a 9 subscript use Base 9 Nonary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

15978
238239
Fifteen Thousand Nine Hundred and Seventy-Eight in Base 9 Nonary
15979
238249
Fifteen Thousand Nine Hundred and Seventy-Nine in Base 9 Nonary
15980
238259
Fifteen Thousand Nine Hundred and Eighty in Base 9 Nonary
15982
238279
Fifteen Thousand Nine Hundred and Eighty-Two in Base 9 Nonary
15983
238289
Fifteen Thousand Nine Hundred and Eighty-Three in Base 9 Nonary
15984
238309
Fifteen Thousand Nine Hundred and Eighty-Four in Base 9 Nonary

Scientific Notation

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

1.5981e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000362255104601038779

The reciprocal of 15981 in Base 9 Nonary.

Palindrome?

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

The number 238269 is not a palindrome.

Not A Prime Number

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

Fifteen thousand nine hundred and eighty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

Fifteen thousand nine hundred and eighty-one 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 fifteen thousand nine hundred and eighty-one has the following 3 prime factors:

3
39
Three in Base 9 Nonary
7
79
Seven in Base 9 Nonary
761
10359
Seven Hundred and Sixty-One in Base 9 Nonary

Prime Factorization

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

391 · 791 · 103591 = 238269

Base Conversions

The number fifteen thousand nine hundred and eighty-one in 35 different bases