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78370268 = 2219979811
BaseRepresentation
bin1001010101111…
…01010111011100
312110110121210112
410222331113130
5130030322033
611435425152
71641064514
oct452752734
9173417715
1078370268
1140268819
12222b51b8
131330c652
14a5a0844
156d30c48
hex4abd5dc

78370268 has 12 divisors (see below), whose sum is σ = 137230632. Its totient is φ = 39161520.

The previous prime is 78370241. The next prime is 78370283. The reversal of 78370268 is 86207387.

It is a super-2 number, since 2×783702682 = 12283797812783648, which contains 22 as substring.

It is a congruent number.

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, 3083 + ... + 12893.

It is an arithmetic number, because the mean of its divisors is an integer number (11435886).

Almost surely, 278370268 is an apocalyptic number.

It is an amenable number.

78370268 is a deficient number, since it is larger than the sum of its proper divisors (58860364).

78370268 is a wasteful number, since it uses less digits than its factorization.

78370268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11812 (or 11810 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 78370268 is about 8852.6983457023. The cubic root of 78370268 is about 427.9408818687.

The spelling of 78370268 in words is "seventy-eight million, three hundred seventy thousand, two hundred sixty-eight".

Divisors: 1 2 4 1997 3994 7988 9811 19622 39244 19592567 39185134 78370268