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79080063640 = 2354148219551
BaseRepresentation
bin100100110100110001…
…0100000001010011000
321120010020002110112221
41021221202200022120
52243423444014030
6100155012113424
75466451310254
oct1115142401230
9246106073487
1079080063640
11305a06a82a6
12133ab905874
1375c367ac86
143b8290d264
1520cc854e7a
hex12698a0298

79080063640 has 32 divisors (see below), whose sum is σ = 182269906560. Its totient is φ = 30860512000.

The previous prime is 79080063613. The next prime is 79080063653. The reversal of 79080063640 is 4636008097.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24108136 + ... + 24111415.

It is an arithmetic number, because the mean of its divisors is an integer number (5695934580).

Almost surely, 279080063640 is an apocalyptic number.

It is an amenable number.

79080063640 is an abundant number, since it is smaller than the sum of its proper divisors (103189842920).

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

79080063640 is a wasteful number, since it uses less digits than its factorization.

79080063640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48219603 (or 48219599 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 79080063640 in words is "seventy-nine billion, eighty million, sixty-three thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 48219551 96439102 192878204 241097755 385756408 482195510 964391020 1928782040 1977001591 3954003182 7908006364 9885007955 15816012728 19770015910 39540031820 79080063640