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30115765108 = 221113224323473
BaseRepresentation
bin11100000011000010…
…100001101101110100
32212201211010101020201
4130003002201231310
5443134113440413
621500205210244
72114203531312
oct340302415564
985654111221
1030115765108
1111854623080
125a05860984
132abc368570
1416599810b2
15bb3d949dd
hex7030a1b74

30115765108 has 48 divisors (see below), whose sum is σ = 61946571456. Its totient is φ = 12629813760.

The previous prime is 30115765063. The next prime is 30115765109. The reversal of 30115765108 is 80156751103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30115765109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1271260 + ... + 1294732.

It is an arithmetic number, because the mean of its divisors is an integer number (1290553572).

Almost surely, 230115765108 is an apocalyptic number.

It is an amenable number.

30115765108 is an abundant number, since it is smaller than the sum of its proper divisors (31830806348).

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

30115765108 is a wasteful number, since it uses less digits than its factorization.

30115765108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25744 (or 25742 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 37.

The spelling of 30115765108 in words is "thirty billion, one hundred fifteen million, seven hundred sixty-five thousand, one hundred eight".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 2243 4486 8972 23473 24673 29159 46946 49346 58318 93892 98692 116636 258203 305149 320749 516406 610298 641498 1032812 1220596 1282996 3356639 6713278 13426556 52649939 105299878 210599756 579149329 684449207 1158298658 1368898414 2316597316 2737796828 7528941277 15057882554 30115765108