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130047756 = 22317637489
BaseRepresentation
bin1111100000001…
…01111100001100
3100001201002222120
413300011330030
5231243012011
620523212540
73136246656
oct760057414
9301632876
10130047756
1167454893
1237677150
1320c34447
14133b36d6
15b63ca06
hex7c05f0c

130047756 has 24 divisors (see below), whose sum is σ = 321294960. Its totient is φ = 40799232.

The previous prime is 130047721. The next prime is 130047763. The reversal of 130047756 is 657740031.

It is an unprimeable number.

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, 318541 + ... + 318948.

It is an arithmetic number, because the mean of its divisors is an integer number (13387290).

Almost surely, 2130047756 is an apocalyptic number.

It is an amenable number.

130047756 is an abundant number, since it is smaller than the sum of its proper divisors (191247204).

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

130047756 is a wasteful number, since it uses less digits than its factorization.

130047756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637513 (or 637511 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 130047756 is about 11403.8482978335. The cubic root of 130047756 is about 506.6417256498.

Adding to 130047756 its reverse (657740031), we get a palindrome (787787787).

The spelling of 130047756 in words is "one hundred thirty million, forty-seven thousand, seven hundred fifty-six".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 637489 1274978 1912467 2549956 3824934 7649868 10837313 21674626 32511939 43349252 65023878 130047756