The Number

728

Seven Hundred and Twenty-Eight

In Base 7 Septenary Is

20607

The numbers with a 7 subscript use Base 7 Septenary notation.

For more familiar numbers: See Seven Hundred and Twenty-Eight in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

725
20547
Seven Hundred and Twenty-Five in Base 7 Septenary
726
20557
Seven Hundred and Twenty-Six in Base 7 Septenary
727
20567
Seven Hundred and Twenty-Seven in Base 7 Septenary
729
20617
Seven Hundred and Twenty-Nine in Base 7 Septenary
730
20627
Seven Hundred and Thirty in Base 7 Septenary
731
20637
Seven Hundred and Thirty-One in Base 7 Septenary

Scientific Notation

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

7.28e2

Reciprocal

A number multiplied with its reciprocal is one.

0.0003204145311003204157

The reciprocal of 728 in Base 7 Septenary.

Palindrome?

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

The number 20607 is not a palindrome.

Not A Prime Number

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

Seven hundred and twenty-eight is a composite number with 16 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

Seven hundred and twenty-eight 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 seven hundred and twenty-eight has the following 3 prime factors:

2
27
Two in Base 7 Septenary
7
107
Seven in Base 7 Septenary
13
167
Thirteen in Base 7 Septenary

Prime Factorization

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

273 · 1071 · 1671 = 20607

Base Conversions

The number seven hundred and twenty-eight in 35 different bases