The Number

20688

Twenty Thousand Six Hundred and Eighty-Eight

In Base 7 Septenary Is

1142137

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

For more familiar numbers: See Twenty Thousand Six Hundred and Eighty-Eight in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

20685
1142107
Twenty Thousand Six Hundred and Eighty-Five in Base 7 Septenary
20686
1142117
Twenty Thousand Six Hundred and Eighty-Six in Base 7 Septenary
20687
1142127
Twenty Thousand Six Hundred and Eighty-Seven in Base 7 Septenary
20689
1142147
Twenty Thousand Six Hundred and Eighty-Nine in Base 7 Septenary
20690
1142157
Twenty Thousand Six Hundred and Ninety in Base 7 Septenary
20691
1142167
Twenty Thousand Six Hundred and Ninety-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.

2.0688e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000054544030334544521247

The reciprocal of 20688 in Base 7 Septenary.

Palindrome?

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

The number 1142137 is not a palindrome.

Not A Prime Number

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

Twenty thousand six hundred and eighty-eight is a composite number with 20 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

Twenty thousand six hundred and eighty-eight is a composite number with 20 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 twenty thousand six hundred and eighty-eight has the following 3 prime factors:

2
27
Two in Base 7 Septenary
3
37
Three in Base 7 Septenary
431
11547
Four Hundred and Thirty-One in Base 7 Septenary

Prime Factorization

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

274 · 371 · 115471 = 1142137

Base Conversions

The number twenty thousand six hundred and eighty-eight in 35 different bases