The Number

9991

Nine Thousand Nine Hundred and Ninety-One

In Base 30 Trigesimal Is

b3130

The numbers with a 30 subscript use Base 30 Trigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

9988
b2s30
Nine Thousand Nine Hundred and Eighty-Eight in Base 30 Trigesimal
9989
b2t30
Nine Thousand Nine Hundred and Eighty-Nine in Base 30 Trigesimal
9990
b3030
Nine Thousand Nine Hundred and Ninety in Base 30 Trigesimal
9992
b3230
Nine Thousand Nine Hundred and Ninety-Two in Base 30 Trigesimal
9993
b3330
Nine Thousand Nine Hundred and Ninety-Three in Base 30 Trigesimal
9994
b3430
Nine Thousand Nine Hundred and Ninety-Four in Base 30 Trigesimal

Scientific Notation

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

9.991e3

Reciprocal

A number multiplied with its reciprocal is one.

0.002l25k25mn7s930

The reciprocal of 9991 in Base 30 Trigesimal.

Palindrome?

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

The number b3130 is not a palindrome.

Not A Prime Number

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

Nine thousand nine hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 30 Trigesimal

A Composite

Composites have more than just these two factors.

Nine thousand nine hundred and ninety-one 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 nine thousand nine hundred and ninety-one has the following 2 prime factors:

97
3730
Ninety-Seven in Base 30 Trigesimal
103
3d30
One Hundred and Three in Base 30 Trigesimal

Prime Factorization

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

37301 · 3d301 = b3130

Base Conversions

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