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68883520912 = 2434671241771
BaseRepresentation
bin100000000100111000…
…1110001110110010000
320120210121111102111021
41000021301301312100
52112033140132122
651351124525224
74655666160403
oct1001161616620
9216717442437
1068883520912
1127238a51888
1211424b50814
13665a04703b
143496627d3a
151bd25c21c7
hex1009c71d90

68883520912 has 20 divisors (see below), whose sum is σ = 133500424176. Its totient is φ = 34431798560.

The previous prime is 68883520879. The next prime is 68883520933. The reversal of 68883520912 is 21902538886.

It is a self number, because there is not a number n which added to its sum of digits gives 68883520912.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565414 + ... + 676357.

Almost surely, 268883520912 is an apocalyptic number.

It is an amenable number.

68883520912 is a deficient number, since it is larger than the sum of its proper divisors (64616903264).

68883520912 is a wasteful number, since it uses less digits than its factorization.

68883520912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245246 (or 1245240 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 68883520912 in words is "sixty-eight billion, eight hundred eighty-three million, five hundred twenty thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 3467 6934 13868 27736 55472 1241771 2483542 4967084 9934168 19868336 4305220057 8610440114 17220880228 34441760456 68883520912