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72796664410 = 25171925322381
BaseRepresentation
bin100001111001100000…
…1001111001001011010
320221220022202201012221
41003303001033021122
52143041421230120
653235313054254
75154653303131
oct1036301171132
9227808681187
1072796664410
1128966901478
121213755738a
136b31977572
14374820c918
151d60ddc0aa
hex10f304f25a

72796664410 has 96 divisors (see below), whose sum is σ = 149197874832. Its totient is φ = 25472378880.

The previous prime is 72796664363. The next prime is 72796664509. The reversal of 72796664410 is 1446669727.

It can be written as a sum of positive squares in 8 ways, for example, as 53405823409 + 19390841001 = 231097^2 + 139251^2 .

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 47 ways as a sum of consecutive naturals, for example, 3241420 + ... + 3263800.

Almost surely, 272796664410 is an apocalyptic number.

72796664410 is an abundant number, since it is smaller than the sum of its proper divisors (76401210422).

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

72796664410 is a wasteful number, since it uses less digits than its factorization.

72796664410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22496 (or 22477 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 72796664410 in words is "seventy-two billion, seven hundred ninety-six million, six hundred sixty-four thousand, four hundred ten".

Divisors: 1 2 5 10 17 19 34 38 53 85 95 106 170 190 265 323 361 530 646 722 901 1007 1615 1802 1805 2014 3230 3610 4505 5035 6137 9010 10070 12274 17119 19133 22381 30685 34238 38266 44762 61370 85595 95665 111905 171190 191330 223810 325261 380477 425239 650522 760954 850478 1186193 1626305 1902385 2126195 2372386 3252610 3804770 4252390 5930965 7229063 8079541 11861930 14458126 16159082 20165281 22537667 36145315 40330562 40397705 45075334 72290630 80795410 100826405 112688335 137352197 201652810 225376670 274704394 383140339 428215673 686760985 766280678 856431346 1373521970 1915701695 2141078365 3831403390 4282156730 7279666441 14559332882 36398332205 72796664410