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68854070384 = 2411235565119
BaseRepresentation
bin100000000100000000…
…1011011110001110000
320120201120002011221222
41000020001123301300
52112003120223014
651344153404212
74655160640661
oct1001001336160
9216646064858
1068854070384
1127223367200
1211417109668
136653c051a8
14349275d368
151bcec0608e
hex100805bc70

68854070384 has 30 divisors (see below), whose sum is σ = 146634989760. Its totient is φ = 31297303840.

The previous prime is 68854070317. The next prime is 68854070423. The reversal of 68854070384 is 48307045886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17780624 + ... + 17784495.

It is an arithmetic number, because the mean of its divisors is an integer number (4887832992).

Almost surely, 268854070384 is an apocalyptic number.

It is an amenable number.

68854070384 is an abundant number, since it is smaller than the sum of its proper divisors (77780919376).

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

68854070384 is a wasteful number, since it uses less digits than its factorization.

68854070384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35565149 (or 35565132 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 68854070384 in words is "sixty-eight billion, eight hundred fifty-four million, seventy thousand, three hundred eighty-four".

Divisors: 1 2 4 8 11 16 22 44 88 121 176 242 484 968 1936 35565119 71130238 142260476 284520952 391216309 569041904 782432618 1564865236 3129730472 4303379399 6259460944 8606758798 17213517596 34427035192 68854070384