The Number

21955

Twenty-One Thousand Nine Hundred and Fifty-Five

In Base 7 Septenary Is

1210037

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

For more familiar numbers: See Twenty-One Thousand Nine Hundred and Fifty-Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

21952
1210007
Twenty-One Thousand Nine Hundred and Fifty-Two in Base 7 Septenary
21953
1210017
Twenty-One Thousand Nine Hundred and Fifty-Three in Base 7 Septenary
21954
1210027
Twenty-One Thousand Nine Hundred and Fifty-Four in Base 7 Septenary
21956
1210047
Twenty-One Thousand Nine Hundred and Fifty-Six in Base 7 Septenary
21957
1210057
Twenty-One Thousand Nine Hundred and Fifty-Seven in Base 7 Septenary
21958
1210067
Twenty-One Thousand Nine Hundred and Fifty-Eight in Base 7 Septenary

Scientific Notation

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

2.1955e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000052340046444554016327

The reciprocal of 21955 in Base 7 Septenary.

Palindrome?

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

The number 1210037 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 nine hundred and fifty-five is a composite number with 4 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 nine hundred and fifty-five is a composite number with 4 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 nine hundred and fifty-five has the following 2 prime factors:

5
57
Five in Base 7 Septenary
4391
155427
Four Thousand Three Hundred and Ninety-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

571 · 1554271 = 1210037

Base Conversions

The number twenty-one thousand nine hundred and fifty-five in 35 different bases