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78070 = 2537211
BaseRepresentation
bin10011000011110110
310222002111
4103003312
54444240
61401234
7443416
oct230366
9128074
1078070
1153723
123921a
13296c5
1420646
15181ea
hex130f6

78070 has 16 divisors (see below), whose sum is σ = 145008. Its totient is φ = 30240.

The previous prime is 78059. The next prime is 78079. The reversal of 78070 is 7087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265 + ... + 475.

It is an arithmetic number, because the mean of its divisors is an integer number (9063).

278070 is an apocalyptic number.

78070 is a deficient number, since it is larger than the sum of its proper divisors (66938).

78070 is a wasteful number, since it uses less digits than its factorization.

78070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 78070 is about 279.4100928743. The cubic root of 78070 is about 42.7393644530.

The spelling of 78070 in words is "seventy-eight thousand, seventy".

Divisors: 1 2 5 10 37 74 185 211 370 422 1055 2110 7807 15614 39035 78070