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130806584 = 2316350823
BaseRepresentation
bin1111100101111…
…11001100111000
3100010010122220022
413302333030320
5231441302314
620551350012
73145560206
oct762771470
9303118808
10130806584
1167922a17
1237982308
132113b95c
1413530076
15b73c78e
hex7cbf338

130806584 has 8 divisors (see below), whose sum is σ = 245262360. Its totient is φ = 65403288.

The previous prime is 130806547. The next prime is 130806587. The reversal of 130806584 is 485608031.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1308065842 = 34220724835498112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130806587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8175404 + ... + 8175419.

It is an arithmetic number, because the mean of its divisors is an integer number (30657795).

Almost surely, 2130806584 is an apocalyptic number.

It is an amenable number.

130806584 is a deficient number, since it is larger than the sum of its proper divisors (114455776).

130806584 is a wasteful number, since it uses less digits than its factorization.

130806584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16350829 (or 16350825 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 130806584 is about 11437.0706039615. The cubic root of 130806584 is about 507.6252325080.

The spelling of 130806584 in words is "one hundred thirty million, eight hundred six thousand, five hundred eighty-four".

Divisors: 1 2 4 8 16350823 32701646 65403292 130806584