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78713795902 = 272803201999
BaseRepresentation
bin100100101001110110…
…1010011010100111110
321112011200220010200011
41021103231103110332
52242201212432102
6100054405453434
75454413140300
oct1112355232476
9245150803604
1078713795902
1130422981995
121330911127a
13756581a3c1
143b4a009970
1520aa6062d7
hex1253b5353e

78713795902 has 12 divisors (see below), whose sum is σ = 137347542000. Its totient is φ = 33734483916.

The previous prime is 78713795869. The next prime is 78713795929. The reversal of 78713795902 is 20959731787.

It is a congruent number.

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, 401600902 + ... + 401601097.

It is an arithmetic number, because the mean of its divisors is an integer number (11445628500).

Almost surely, 278713795902 is an apocalyptic number.

78713795902 is a deficient number, since it is larger than the sum of its proper divisors (58633746098).

78713795902 is a wasteful number, since it uses less digits than its factorization.

78713795902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803202015 (or 803202008 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 58.

The spelling of 78713795902 in words is "seventy-eight billion, seven hundred thirteen million, seven hundred ninety-five thousand, nine hundred two".

Divisors: 1 2 7 14 49 98 803201999 1606403998 5622413993 11244827986 39356897951 78713795902