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130190724 = 22323616409
BaseRepresentation
bin1111100001010…
…00110110000100
3100001222101002200
413300220312010
5231312100344
620530234500
73140413536
oct760506604
9301871080
10130190724
1167542244
1237725a30
1320c84541
141340d856
15b66a069
hex7c28d84

130190724 has 18 divisors (see below), whose sum is σ = 329093310. Its totient is φ = 43396896.

The previous prime is 130190707. The next prime is 130190759. The reversal of 130190724 is 427091031.

It can be written as a sum of positive squares in only one way, i.e., 115992900 + 14197824 = 10770^2 + 3768^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1808169 + ... + 1808240.

Almost surely, 2130190724 is an apocalyptic number.

It is an amenable number.

130190724 is an abundant number, since it is smaller than the sum of its proper divisors (198902586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130190724 is a wasteful number, since it uses less digits than its factorization.

130190724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616419 (or 3616414 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 130190724 is about 11410.1149862742. The cubic root of 130190724 is about 506.8273165163.

The spelling of 130190724 in words is "one hundred thirty million, one hundred ninety thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 3616409 7232818 10849227 14465636 21698454 32547681 43396908 65095362 130190724