The Number

65

Sixty-Five

Nearby Numbers

Positive, nonzero integers within three units

62
Sixty-Two
63
Sixty-Three
64
Sixty-Four
66
Sixty-Six
67
Sixty-Seven
68
Sixty-Eight

Scientific Notation

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

6.5e1

Reciprocal

A number multiplied with its reciprocal is one.

0.015384615384615385

The reciprocal of 65.

Palindrome?

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

The number 65 is not a palindrome.

Not A Prime Number

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

Sixty-five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Sixty-five 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 sixty-five has the following 2 prime factors:

5
Five
13
Thirteen

Prime Factorization

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

51 · 131 = 65

Base Conversions

The number sixty-five in 35 different bases