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68930560472 = 238616320059
BaseRepresentation
bin100000000110010010…
…1001110000111011000
320120220220000021122012
41000030211032013120
52112132210413342
651355525045052
74660110045104
oct1001445160730
9216826007565
1068930560472
1127262560354
1211438856788
136666a06ab7
14349c990904
151bd67b4b82
hex100c94e1d8

68930560472 has 8 divisors (see below), whose sum is σ = 129244800900. Its totient is φ = 34465280232.

The previous prime is 68930560451. The next prime is 68930560483. The reversal of 68930560472 is 27406503986.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 68930560472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4308160022 + ... + 4308160037.

Almost surely, 268930560472 is an apocalyptic number.

It is an amenable number.

68930560472 is a deficient number, since it is larger than the sum of its proper divisors (60314240428).

68930560472 is a wasteful number, since it uses less digits than its factorization.

68930560472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8616320065 (or 8616320061 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 68930560472 in words is "sixty-eight billion, nine hundred thirty million, five hundred sixty thousand, four hundred seventy-two".

Divisors: 1 2 4 8 8616320059 17232640118 34465280236 68930560472