The Number

13991

Thirteen Thousand Nine Hundred and Ninety-One

In Base 7 Septenary Is

555357

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

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

Nearby Numbers

Positive, nonzero integers within three units

13988
555327
Thirteen Thousand Nine Hundred and Eighty-Eight in Base 7 Septenary
13989
555337
Thirteen Thousand Nine Hundred and Eighty-Nine in Base 7 Septenary
13990
555347
Thirteen Thousand Nine Hundred and Ninety in Base 7 Septenary
13992
555367
Thirteen Thousand Nine Hundred and Ninety-Two in Base 7 Septenary
13993
555407
Thirteen Thousand Nine Hundred and Ninety-Three in Base 7 Septenary
13994
555417
Thirteen 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.

1.3991e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000011260153230634236557

The reciprocal of 13991 in Base 7 Septenary.

Palindrome?

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

The number 555357 is not a palindrome.

Not A Prime Number

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

Thirteen 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.

Thirteen 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 thirteen thousand nine hundred and ninety-one has the following 2 prime factors:

17
237
Seventeen in Base 7 Septenary
823
22547
Eight Hundred and Twenty-Three in Base 7 Septenary

Prime Factorization

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

2371 · 225471 = 555357

Base Conversions

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