The Number

1664

One Thousand Six Hundred and Sixty-Four

Nearby Numbers

Positive, nonzero integers within three units

1661
One Thousand Six Hundred and Sixty-One
1662
One Thousand Six Hundred and Sixty-Two
1663
One Thousand Six Hundred and Sixty-Three
1665
One Thousand Six Hundred and Sixty-Five
1666
One Thousand Six Hundred and Sixty-Six
1667
One Thousand Six Hundred and Sixty-Seven

Scientific Notation

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

1.664e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0006009615384615385

The reciprocal of 1664.

Palindrome?

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

The number 1664 is not a palindrome.

Not A Prime Number

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

One thousand six hundred and sixty-four is a composite number with 16 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

One thousand six hundred and sixty-four is a composite number with 16 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 one thousand six hundred and sixty-four has the following 2 prime factors:

2
Two
13
Thirteen

Prime Factorization

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

27 · 131 = 1664

Base Conversions

The number one thousand six hundred and sixty-four in 35 different bases