The Number

11991

Eleven Thousand Nine Hundred and Ninety-One

In Base 35 Pentatrigesimal Is

9rl35

The numbers with a 35 subscript use Base 35 Pentatrigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

11988
9ri35
Eleven Thousand Nine Hundred and Eighty-Eight in Base 35 Pentatrigesimal
11989
9rj35
Eleven Thousand Nine Hundred and Eighty-Nine in Base 35 Pentatrigesimal
11990
9rk35
Eleven Thousand Nine Hundred and Ninety in Base 35 Pentatrigesimal
11992
9rm35
Eleven Thousand Nine Hundred and Ninety-Two in Base 35 Pentatrigesimal
11993
9rn35
Eleven Thousand Nine Hundred and Ninety-Three in Base 35 Pentatrigesimal
11994
9ro35
Eleven Thousand Nine Hundred and Ninety-Four in Base 35 Pentatrigesimal

Scientific Notation

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

1.1991e4

Reciprocal

A number multiplied with its reciprocal is one.

0.003k53radytys35

The reciprocal of 11991 in Base 35 Pentatrigesimal.

Palindrome?

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

The number 9rl35 is not a palindrome.

Not A Prime Number

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

Eleven thousand nine hundred and ninety-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 35 Pentatrigesimal

A Composite

Composites have more than just these two factors.

Eleven thousand nine hundred and ninety-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 eleven thousand nine hundred and ninety-one has the following 3 prime factors:

3
335
Three in Base 35 Pentatrigesimal
7
735
Seven in Base 35 Pentatrigesimal
571
gb35
Five Hundred and Seventy-One in Base 35 Pentatrigesimal

Prime Factorization

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

3351 · 7351 · gb351 = 9rl35

Base Conversions

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