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68237791024 = 2413634351721
BaseRepresentation
bin111111100011010010…
…100000111100110000
320112010121102221121111
4333203102200330300
52104222333303044
651203100403104
74633665440104
oct774322407460
9215117387544
1068237791024
1126a374aa417
1211284846494
136586329850
143434979904
151b95a6eb34
hexfe34a0f30

68237791024 has 40 divisors (see below), whose sum is σ = 142405975712. Its totient is φ = 31488791040.

The previous prime is 68237791003. The next prime is 68237791103. The reversal of 68237791024 is 42019773286.

It is a happy number.

68237791024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×682377910242 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293484 + ... + 1345204.

Almost surely, 268237791024 is an apocalyptic number.

It is an amenable number.

68237791024 is an abundant number, since it is smaller than the sum of its proper divisors (74168184688).

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

68237791024 is a wasteful number, since it uses less digits than its factorization.

68237791024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58085 (or 58079 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 68237791024 in words is "sixty-eight billion, two hundred thirty-seven million, seven hundred ninety-one thousand, twenty-four".

Divisors: 1 2 4 8 13 16 26 52 104 208 6343 12686 25372 50744 51721 82459 101488 103442 164918 206884 329836 413768 659672 672373 827536 1319344 1344746 2689492 5378984 10757968 328066303 656132606 1312265212 2624530424 4264861939 5249060848 8529723878 17059447756 34118895512 68237791024