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78950873164 = 22471204334871
BaseRepresentation
bin100100110000111010…
…1101011100001001100
321112210012222220112111
41021201311223201030
52243142410420124
6100134115113404
75463322230532
oct1114165534114
9245705886474
1078950873164
1130534789609
12133745a2864
1375a2986ac7
143b6d6c0152
1520c1336494
hex1261d6b84c

78950873164 has 24 divisors (see below), whose sum is σ = 141119451648. Its totient is φ = 38631217680.

The previous prime is 78950873123. The next prime is 78950873179. The reversal of 78950873164 is 46137805987.

It is a junction number, because it is equal to n+sod(n) for n = 78950873099 and 78950873108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2246649 + ... + 2281519.

It is an arithmetic number, because the mean of its divisors is an integer number (5879977152).

Almost surely, 278950873164 is an apocalyptic number.

It is an amenable number.

78950873164 is a deficient number, since it is larger than the sum of its proper divisors (62168578484).

78950873164 is a wasteful number, since it uses less digits than its factorization.

78950873164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46965 (or 46963 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 78950873164 in words is "seventy-eight billion, nine hundred fifty million, eight hundred seventy-three thousand, one hundred sixty-four".

Divisors: 1 2 4 47 94 188 12043 24086 34871 48172 69742 139484 566021 1132042 1638937 2264084 3277874 6555748 419951453 839902906 1679805812 19737718291 39475436582 78950873164