The Number

81401

Eighty-One Thousand Four Hundred and One

In Base 7 Septenary Is

4562157

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

For more familiar numbers: See Eighty-One Thousand Four Hundred and One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

81398
4562127
Eighty-One Thousand Three Hundred and Ninety-Eight in Base 7 Septenary
81399
4562137
Eighty-One Thousand Three Hundred and Ninety-Nine in Base 7 Septenary
81400
4562147
Eighty-One Thousand Four Hundred in Base 7 Septenary
81402
4562167
Eighty-One Thousand Four Hundred and Two in Base 7 Septenary
81403
4562207
Eighty-One Thousand Four Hundred and Three in Base 7 Septenary
81404
4562217
Eighty-One Thousand Four Hundred and 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.

8.1401e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000001305511202654522627

The reciprocal of 81401 in Base 7 Septenary.

Palindrome?

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

The number 4562157 is not a palindrome.

A Prime Number

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

Eighty-one thousand four hundred and one is the 7965th prime number.   See primes in Base 7 Septenary

Not A Composite

Composites have more than just these two factors.

Eighty-One Thousand Four Hundred and One is not a composite number because it has exactly two factors: One and Eighty-One Thousand Four Hundred and One

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number eighty-one thousand four hundred and one has the following 1 prime factor:

81401
4562157
Eighty-One Thousand Four Hundred and 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

45621571 = 4562157

Base Conversions

The number eighty-one thousand four hundred and one in 35 different bases