The Number

19981

Nineteen Thousand Nine Hundred and Eighty-One

In Base 27 Heptavigesimal Is

10b127

The numbers with a 27 subscript use Base 27 Heptavigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

19978
10ap27
Nineteen Thousand Nine Hundred and Seventy-Eight in Base 27 Heptavigesimal
19979
10aq27
Nineteen Thousand Nine Hundred and Seventy-Nine in Base 27 Heptavigesimal
19980
10b027
Nineteen Thousand Nine Hundred and Eighty in Base 27 Heptavigesimal
19982
10b227
Nineteen Thousand Nine Hundred and Eighty-Two in Base 27 Heptavigesimal
19983
10b327
Nineteen Thousand Nine Hundred and Eighty-Three in Base 27 Heptavigesimal
19984
10b427
Nineteen Thousand Nine Hundred and Eighty-Four in Base 27 Heptavigesimal

Scientific Notation

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

1.9981e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000qg3bqqf4mcib27

The reciprocal of 19981 in Base 27 Heptavigesimal.

Palindrome?

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

The number 10b127 is not a palindrome.

Not A Prime Number

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

Nineteen thousand nine hundred and eighty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 27 Heptavigesimal

A Composite

Composites have more than just these two factors.

Nineteen 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 nineteen thousand nine hundred and eighty-one has the following 3 prime factors:

13
d27
Thirteen in Base 27 Heptavigesimal
29
1227
Twenty-Nine in Base 27 Heptavigesimal
53
1q27
Fifty-Three in Base 27 Heptavigesimal

Prime Factorization

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

d271 · 12271 · 1q271 = 10b127

Base Conversions

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