The Number

30981

Thirty Thousand Nine Hundred and Eighty-One

In Base 7 Septenary Is

1562167

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

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

Nearby Numbers

Positive, nonzero integers within three units

30978
1562137
Thirty Thousand Nine Hundred and Seventy-Eight in Base 7 Septenary
30979
1562147
Thirty Thousand Nine Hundred and Seventy-Nine in Base 7 Septenary
30980
1562157
Thirty Thousand Nine Hundred and Eighty in Base 7 Septenary
30982
1562207
Thirty Thousand Nine Hundred and Eighty-Two in Base 7 Septenary
30983
1562217
Thirty Thousand Nine Hundred and Eighty-Three in Base 7 Septenary
30984
1562227
Thirty Thousand Nine Hundred and Eighty-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.

3.0981e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000003540345650266214127

The reciprocal of 30981 in Base 7 Septenary.

Palindrome?

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

The number 1562167 is not a palindrome.

Not A Prime Number

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

Thirty thousand nine hundred and eighty-one 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.

Thirty thousand nine hundred and eighty-one 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 thirty thousand nine hundred and eighty-one has the following 3 prime factors:

3
37
Three in Base 7 Septenary
23
327
Twenty-Three in Base 7 Septenary
449
12117
Four 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

371 · 3271 · 121171 = 1562167

Base Conversions

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