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30747761652 = 2238928790039
BaseRepresentation
bin11100101000101101…
…011001101111110100
32221100212100010112010
4130220231121233310
51000432411333102
622043023124220
72135646442656
oct345055315764
987325303463
1030747761652
1112049345473
125b61443670
132b90287b0a
1416b98966d6
15bee5d2d6c
hex728b59bf4

30747761652 has 24 divisors (see below), whose sum is σ = 72550900800. Its totient is φ = 10134093376.

The previous prime is 30747761641. The next prime is 30747761683. The reversal of 30747761652 is 25616774703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14393952 + ... + 14396087.

It is an arithmetic number, because the mean of its divisors is an integer number (3022954200).

Almost surely, 230747761652 is an apocalyptic number.

It is an amenable number.

30747761652 is an abundant number, since it is smaller than the sum of its proper divisors (41803139148).

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

30747761652 is a wasteful number, since it uses less digits than its factorization.

30747761652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28790135 (or 28790133 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 48.

The spelling of 30747761652 in words is "thirty billion, seven hundred forty-seven million, seven hundred sixty-one thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 89 178 267 356 534 1068 28790039 57580078 86370117 115160156 172740234 345480468 2562313471 5124626942 7686940413 10249253884 15373880826 30747761652