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78935641152 = 263411123131
BaseRepresentation
bin100100110000011101…
…1100100110001000000
321112202011100001010220
41021200323210301000
52243130011004102
6100132412423040
75463045610404
oct1114073446100
9245664301126
1078935641152
1130527125575
121336b477a80
13759c782994
143b6b677104
1520bed281bc
hex1260ee4c40

78935641152 has 28 divisors (see below), whose sum is σ = 208850551056. Its totient is φ = 26311880320.

The previous prime is 78935641123. The next prime is 78935641171. The reversal of 78935641152 is 25114653987.

It is a junction number, because it is equal to n+sod(n) for n = 78935641095 and 78935641104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205561374 + ... + 205561757.

It is an arithmetic number, because the mean of its divisors is an integer number (7458948252).

Almost surely, 278935641152 is an apocalyptic number.

It is an amenable number.

78935641152 is an abundant number, since it is smaller than the sum of its proper divisors (129914909904).

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

78935641152 is a wasteful number, since it uses less digits than its factorization.

78935641152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411123146 (or 411123136 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The spelling of 78935641152 in words is "seventy-eight billion, nine hundred thirty-five million, six hundred forty-one thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 411123131 822246262 1233369393 1644492524 2466738786 3288985048 4933477572 6577970096 9866955144 13155940192 19733910288 26311880384 39467820576 78935641152