The Number

21992

Twenty-One Thousand Nine Hundred and Ninety-Two

In Base 7 Septenary Is

1210557

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

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

Nearby Numbers

Positive, nonzero integers within three units

21989
1210527
Twenty-One Thousand Nine Hundred and Eighty-Nine in Base 7 Septenary
21990
1210537
Twenty-One Thousand Nine Hundred and Ninety in Base 7 Septenary
21991
1210547
Twenty-One Thousand Nine Hundred and Ninety-One in Base 7 Septenary
21993
1210567
Twenty-One Thousand Nine Hundred and Ninety-Three in Base 7 Septenary
21994
1210607
Twenty-One Thousand Nine Hundred and Ninety-Four in Base 7 Septenary
21995
1210617
Twenty-One Thousand Nine Hundred and Ninety-Five in Base 7 Septenary

Scientific Notation

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

2.1992e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000005230631166042300067

The reciprocal of 21992 in Base 7 Septenary.

Palindrome?

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

The number 1210557 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 ninety-two is a composite number with 8 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 ninety-two is a composite number with 8 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 ninety-two has the following 2 prime factors:

2
27
Two in Base 7 Septenary
2749
110057
Two Thousand Seven Hundred and Forty-Nine 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 · 1100571 = 1210557

Base Conversions

The number twenty-one thousand nine hundred and ninety-two in 35 different bases