The Number

21648

Twenty-One Thousand Six Hundred and Forty-Eight

In Base 7 Septenary Is

1200547

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

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

Nearby Numbers

Positive, nonzero integers within three units

21645
1200517
Twenty-One Thousand Six Hundred and Forty-Five in Base 7 Septenary
21646
1200527
Twenty-One Thousand Six Hundred and Forty-Six in Base 7 Septenary
21647
1200537
Twenty-One Thousand Six Hundred and Forty-Seven in Base 7 Septenary
21649
1200557
Twenty-One Thousand Six Hundred and Forty-Nine in Base 7 Septenary
21650
1200567
Twenty-One Thousand Six Hundred and Fifty in Base 7 Septenary
21651
1200607
Twenty-One Thousand Six Hundred and Fifty-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.

2.1648e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000053020363300440241627

The reciprocal of 21648 in Base 7 Septenary.

Palindrome?

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

The number 1200547 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand six hundred and forty-eight is a composite number with 40 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

Twenty-one thousand six hundred and forty-eight is a composite number with 40 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-one thousand six hundred and forty-eight has the following 4 prime factors:

2
27
Two in Base 7 Septenary
3
37
Three in Base 7 Septenary
11
147
Eleven in Base 7 Septenary
41
567
Forty-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 · 1471 · 5671 = 1200547

Base Conversions

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