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79994026164 = 223132591197909
BaseRepresentation
bin100101010000000000…
…0111111100010110100
321122110220212120102210
41022200000333202310
52302311432314124
6100425421333420
75531220001113
oct1124000774264
9248426776383
1079994026164
1130a1a5a6928
1213605a07270
13770ab229c0
143c2c061c7a
152132bdda29
hex12a003f8b4

79994026164 has 48 divisors (see below), whose sum is σ = 201089226240. Its totient is φ = 24603922560.

The previous prime is 79994026153. The next prime is 79994026199. The reversal of 79994026164 is 46162049997.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305242 + ... + 503150.

It is an arithmetic number, because the mean of its divisors is an integer number (4189358880).

Almost surely, 279994026164 is an apocalyptic number.

It is an amenable number.

79994026164 is an abundant number, since it is smaller than the sum of its proper divisors (121095200076).

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

79994026164 is a wasteful number, since it uses less digits than its factorization.

79994026164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200520 (or 200518 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 79994026164 in words is "seventy-nine billion, nine hundred ninety-four million, twenty-six thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 2591 5182 7773 10364 15546 31092 33683 67366 101049 134732 197909 202098 395818 404196 593727 791636 1187454 2374908 2572817 5145634 7718451 10291268 15436902 30873804 512782219 1025564438 1538346657 2051128876 3076693314 6153386628 6666168847 13332337694 19998506541 26664675388 39997013082 79994026164