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78383368 = 2378915727
BaseRepresentation
bin1001010110000…
…00100100001000
312110111021202201
410223000210020
5130031231433
611440005544
71641150640
oct453004410
9173437681
1078383368
1140277648
12223008b4
13133155bb
14a5a5520
156d34a7d
hex4ac0908

78383368 has 32 divisors (see below), whose sum is σ = 169862400. Its totient is φ = 33213312.

The previous prime is 78383323. The next prime is 78383377. The reversal of 78383368 is 86338387.

It is a super-2 number, since 2×783833682 = 12287904758046848, which contains 22 as substring.

It is a zygodrome in base 6.

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, 2880 + ... + 12847.

It is an arithmetic number, because the mean of its divisors is an integer number (5308200).

Almost surely, 278383368 is an apocalyptic number.

It is an amenable number.

78383368 is an abundant number, since it is smaller than the sum of its proper divisors (91479032).

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

78383368 is a wasteful number, since it uses less digits than its factorization.

78383368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15829 (or 15825 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 78383368 is about 8853.4382021902. The cubic root of 78383368 is about 427.9647247254.

The spelling of 78383368 in words is "seventy-eight million, three hundred eighty-three thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 56 89 178 356 623 712 1246 2492 4984 15727 31454 62908 110089 125816 220178 440356 880712 1399703 2799406 5598812 9797921 11197624 19595842 39191684 78383368