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83215088904 = 23315122962221
BaseRepresentation
bin100110110000000000…
…0010111110100001000
321221210101212111211210
41031200000113310020
52330411030321104
6102121204053120
76004101404433
oct1154000276410
9257711774753
1083215088904
1132322825a52
12141646941a0
137b0225759c
144055b7081a
15227089c989
hex1360017d08

83215088904 has 32 divisors (see below), whose sum is σ = 209415464640. Its totient is φ = 27554664000.

The previous prime is 83215088903. The next prime is 83215088921. The reversal of 83215088904 is 40988051238.

It is not an unprimeable number, because it can be changed into a prime (83215088903) by changing a digit.

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, 11477487 + ... + 11484734.

It is an arithmetic number, because the mean of its divisors is an integer number (6544233270).

Almost surely, 283215088904 is an apocalyptic number.

It is an amenable number.

83215088904 is an abundant number, since it is smaller than the sum of its proper divisors (126200375736).

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

83215088904 is a wasteful number, since it uses less digits than its factorization.

83215088904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22962381 (or 22962377 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 83215088904 in words is "eighty-three billion, two hundred fifteen million, eighty-eight thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 24 151 302 453 604 906 1208 1812 3624 22962221 45924442 68886663 91848884 137773326 183697768 275546652 551093304 3467295371 6934590742 10401886113 13869181484 20803772226 27738362968 41607544452 83215088904