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68383390384 = 244770189599
BaseRepresentation
bin111111101011111101…
…111011101010110000
320112111202102011101101
4333223331323222300
52110022121443014
651225341214144
74640414141041
oct775375735260
9215452364341
1068383390384
1127001706371
1211305561354
1365aa54770a
14344a03a8c8
151ba3730474
hexfebf7bab0

68383390384 has 20 divisors (see below), whose sum is σ = 132497075200. Its totient is φ = 34190596800.

The previous prime is 68383390363. The next prime is 68383390399. The reversal of 68383390384 is 48309338386.

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, 718417 + ... + 808015.

It is an arithmetic number, because the mean of its divisors is an integer number (6624853760).

Almost surely, 268383390384 is an apocalyptic number.

It is an amenable number.

68383390384 is a deficient number, since it is larger than the sum of its proper divisors (64113684816).

68383390384 is a wasteful number, since it uses less digits than its factorization.

68383390384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137308 (or 137302 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 68383390384 in words is "sixty-eight billion, three hundred eighty-three million, three hundred ninety thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 47701 89599 95402 179198 190804 358396 381608 716792 763216 1433584 4273961899 8547923798 17095847596 34191695192 68383390384