Search a number
-
+
130131109 = 374774831
BaseRepresentation
bin1111100000110…
…10010010100101
3100001212100022201
413300122102211
5231303143414
620525054501
73140044663
oct760322245
9301770281
10130131109
1167501479
12376b7431
1320c63374
14133d5c33
15b657574
hex7c1a4a5

130131109 has 8 divisors (see below), whose sum is σ = 136493568. Its totient is φ = 123918480.

The previous prime is 130131103. The next prime is 130131137. The reversal of 130131109 is 901131031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130131109 - 213 = 130122917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130131103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35677 + ... + 39154.

It is an arithmetic number, because the mean of its divisors is an integer number (17061696).

Almost surely, 2130131109 is an apocalyptic number.

It is an amenable number.

130131109 is a deficient number, since it is larger than the sum of its proper divisors (6362459).

130131109 is an equidigital number, since it uses as much as digits as its factorization.

130131109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74915.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 130131109 is about 11407.5023120752. The cubic root of 130131109 is about 506.7499450966.

The spelling of 130131109 in words is "one hundred thirty million, one hundred thirty-one thousand, one hundred nine".

Divisors: 1 37 47 1739 74831 2768747 3517057 130131109