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BaseRepresentation
bin10011000111101100
310222102121
4103013230
510001231
61402324
7444220
oct230754
9128377
1078316
1153927
12393a4
1329854
1420780
1518311
hex131ec

78316 has 12 divisors (see below), whose sum is σ = 156688. Its totient is φ = 33552.

The previous prime is 78311. The next prime is 78317. The reversal of 78316 is 61387.

It is a super-2 number, since 2×783162 = 12266791712, which contains 22 as substring.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (78311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1371 + ... + 1426.

278316 is an apocalyptic number.

It is an amenable number.

78316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78344).

78316 is a wasteful number, since it uses less digits than its factorization.

78316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2806 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 78316 is about 279.8499597999. The cubic root of 78316 is about 42.7842082248.

The spelling of 78316 in words is "seventy-eight thousand, three hundred sixteen".

Divisors: 1 2 4 7 14 28 2797 5594 11188 19579 39158 78316