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130755812 = 221110129423
BaseRepresentation
bin1111100101100…
…10110011100100
3100010001002020212
413302302303210
5231433141222
620550314552
73145256165
oct762626344
9303032225
10130755812
1167898860
1237958a58
1321121805
141351976c
15b72c6e2
hex7cb2ce4

130755812 has 24 divisors (see below), whose sum is σ = 252104832. Its totient is φ = 58844000.

The previous prime is 130755811. The next prime is 130755869. The reversal of 130755812 is 218557031.

It is not an unprimeable number, because it can be changed into a prime (130755811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10268 + ... + 19155.

It is an arithmetic number, because the mean of its divisors is an integer number (10504368).

Almost surely, 2130755812 is an apocalyptic number.

It is an amenable number.

130755812 is a deficient number, since it is larger than the sum of its proper divisors (121349020).

130755812 is a wasteful number, since it uses less digits than its factorization.

130755812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29539 (or 29537 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 130755812 is about 11434.8507642208. The cubic root of 130755812 is about 507.5595465086.

The spelling of 130755812 in words is "one hundred thirty million, seven hundred fifty-five thousand, eight hundred twelve".

Divisors: 1 2 4 11 22 44 101 202 404 1111 2222 4444 29423 58846 117692 323653 647306 1294612 2971723 5943446 11886892 32688953 65377906 130755812