The Number

27991

Twenty-Seven Thousand Nine Hundred and Ninety-One

In Base 7 Septenary Is

1444157

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

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

Nearby Numbers

Positive, nonzero integers within three units

27988
1444127
Twenty-Seven Thousand Nine Hundred and Eighty-Eight in Base 7 Septenary
27989
1444137
Twenty-Seven Thousand Nine Hundred and Eighty-Nine in Base 7 Septenary
27990
1444147
Twenty-Seven Thousand Nine Hundred and Ninety in Base 7 Septenary
27992
1444167
Twenty-Seven Thousand Nine Hundred and Ninety-Two in Base 7 Septenary
27993
1444207
Twenty-Seven Thousand Nine Hundred and Ninety-Three in Base 7 Septenary
27994
1444217
Twenty-Seven Thousand Nine Hundred and Ninety-Four in Base 7 Septenary

Scientific Notation

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

2.7991e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000041264434255425452547

The reciprocal of 27991 in Base 7 Septenary.

Palindrome?

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

The number 1444157 is not a palindrome.

Not A Prime Number

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

Twenty-seven thousand nine hundred and ninety-one 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-seven thousand nine hundred and ninety-one 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-seven thousand nine hundred and ninety-one has the following 2 prime factors:

23
327
Twenty-Three in Base 7 Septenary
1217
33567
One Thousand Two Hundred and Seventeen in Base 7 Septenary

Prime Factorization

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

3271 · 335671 = 1444157

Base Conversions

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