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80396383578 = 23721716085711
BaseRepresentation
bin100101011011111111…
…1110111010101011010
321200111221222110001020
41022313333313111122
52304122433233303
6100533353303310
75544203661600
oct1126777672532
9250457873036
1080396383578
1131106731a15
12136b8704b36
1377732ab304
143c6967b870
1521581baa53
hex12b7ff755a

80396383578 has 48 divisors (see below), whose sum is σ = 198047286144. Its totient is φ = 21619194240.

The previous prime is 80396383553. The next prime is 80396383583. The reversal of 80396383578 is 87538369308.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8037858 + ... + 8047853.

It is an arithmetic number, because the mean of its divisors is an integer number (4125985128).

Almost surely, 280396383578 is an apocalyptic number.

80396383578 is an abundant number, since it is smaller than the sum of its proper divisors (117650902566).

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

80396383578 is a wasteful number, since it uses less digits than its factorization.

80396383578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16085747 (or 16085740 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 80396383578 in words is "eighty billion, three hundred ninety-six million, three hundred eighty-three thousand, five hundred seventy-eight".

Divisors: 1 2 3 6 7 14 17 21 34 42 49 51 98 102 119 147 238 294 357 714 833 1666 2499 4998 16085711 32171422 48257133 96514266 112599977 225199954 273457087 337799931 546914174 675599862 788199839 820371261 1576399678 1640742522 1914199609 2364599517 3828399218 4729199034 5742598827 11485197654 13399397263 26798794526 40198191789 80396383578