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78870232 = 2371408397
BaseRepresentation
bin1001011001101…
…11011011011000
312111102000121201
410230313123120
5130142321412
611454243544
71645246240
oct454673330
9174360551
1078870232
114057a411
12224b65b4
131345609c
14a690b20
156dcde57
hex4b376d8

78870232 has 16 divisors (see below), whose sum is σ = 169007760. Its totient is φ = 33801504.

The previous prime is 78870223. The next prime is 78870241. The reversal of 78870232 is 23207887.

It is an interprime number because it is at equal distance from previous prime (78870223) and next prime (78870241).

It is a junction number, because it is equal to n+sod(n) for n = 78870191 and 78870200.

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, 704143 + ... + 704254.

It is an arithmetic number, because the mean of its divisors is an integer number (10562985).

Almost surely, 278870232 is an apocalyptic number.

It is an amenable number.

78870232 is an abundant number, since it is smaller than the sum of its proper divisors (90137528).

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

78870232 is a wasteful number, since it uses less digits than its factorization.

78870232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408410 (or 1408406 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 78870232 is about 8880.8913967011. The cubic root of 78870232 is about 428.8489714202.

The spelling of 78870232 in words is "seventy-eight million, eight hundred seventy thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 1408397 2816794 5633588 9858779 11267176 19717558 39435116 78870232