The Number

91

Ninety-One

In Base 11 Undecimal Is

8311

The numbers with a 11 subscript use Base 11 Undecimal notation.

For more familiar numbers: See Ninety-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

88
8011
Eighty-Eight in Base 11 Undecimal
89
8111
Eighty-Nine in Base 11 Undecimal
90
8211
Ninety in Base 11 Undecimal
92
8411
Ninety-Two in Base 11 Undecimal
93
8511
Ninety-Three in Base 11 Undecimal
94
8611
Ninety-Four in Base 11 Undecimal

Scientific Notation

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

9.1e1

Reciprocal

A number multiplied with its reciprocal is one.

0.0136987810a70136a511

The reciprocal of 91 in Base 11 Undecimal.

Palindrome?

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

The number 8311 is not a palindrome.

Not A Prime Number

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

Ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

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 ninety-one has the following 2 prime factors:

7
711
Seven in Base 11 Undecimal
13
1211
Thirteen in Base 11 Undecimal

Prime Factorization

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

7111 · 12111 = 8311

Base Conversions

The number ninety-one in 35 different bases