The Number

1664

One Thousand Six Hundred and Sixty-Four

In Base 15 Quindecimal Is

75e15

The numbers with a 15 subscript use Base 15 Quindecimal notation.

For more familiar numbers: See One Thousand Six Hundred and Sixty-Four in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

1661
75b15
One Thousand Six Hundred and Sixty-One in Base 15 Quindecimal
1662
75c15
One Thousand Six Hundred and Sixty-Two in Base 15 Quindecimal
1663
75d15
One Thousand Six Hundred and Sixty-Three in Base 15 Quindecimal
1665
76015
One Thousand Six Hundred and Sixty-Five in Base 15 Quindecimal
1666
76115
One Thousand Six Hundred and Sixty-Six in Base 15 Quindecimal
1667
76215
One Thousand Six Hundred and Sixty-Seven in Base 15 Quindecimal

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.

0.0020654da5d8779815

The reciprocal of 1664 in Base 15 Quindecimal.

Palindrome?

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

The number 75e15 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 15 Quindecimal

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
215
Two in Base 15 Quindecimal
13
d15
Thirteen in Base 15 Quindecimal

Prime Factorization

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

2157 · d151 = 75e15

Base Conversions

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