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67793758912 = 2611271355343
BaseRepresentation
bin111111001000110100…
…101010101011000000
320110222122220210001201
4333020310222223000
52102320200241122
651051035310544
74616664304615
oct771064525300
9213878823051
1067793758912
112682989a530
121117bbab454
13651533c359
1433d19d250c
151b6baaea27
hexfc8d2aac0

67793758912 has 56 divisors (see below), whose sum is σ = 147300037632. Its totient is φ = 30701548800.

The previous prime is 67793758889. The next prime is 67793758937. The reversal of 67793758912 is 21985739776.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13113 + ... + 368455.

Almost surely, 267793758912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67793758912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73650018816).

67793758912 is an abundant number, since it is smaller than the sum of its proper divisors (79506278720).

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

67793758912 is a wasteful number, since it uses less digits than its factorization.

67793758912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355637 (or 355627 counting only the distinct ones).

The product of its digits is 40007520, while the sum is 64.

The spelling of 67793758912 in words is "sixty-seven billion, seven hundred ninety-three million, seven hundred fifty-eight thousand, nine hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 271 352 542 704 1084 2168 2981 4336 5962 8672 11924 17344 23848 47696 95392 190784 355343 710686 1421372 2842744 3908773 5685488 7817546 11370976 15635092 22741952 31270184 62540368 96297953 125080736 192595906 250161472 385191812 770383624 1059277483 1540767248 2118554966 3081534496 4237109932 6163068992 8474219864 16948439728 33896879456 67793758912