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78296135 = 5171277253
BaseRepresentation
bin1001010101010…
…11010001000111
312110022212002212
410222223101013
5130020434020
611434054035
71640335421
oct452532107
9173285085
1078296135
1140218055
122227a31b
13132b4998
14a581811
156d18cc5
hex4aab447

78296135 has 16 divisors (see below), whose sum is σ = 100279296. Its totient is φ = 58480128.

The previous prime is 78296083. The next prime is 78296149. The reversal of 78296135 is 53169287.

It is a cyclic number.

It is not a de Polignac number, because 78296135 - 226 = 11187271 is a prime.

It is a super-2 number, since 2×782961352 = 12260569511876450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78296092 and 78296101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7169 + ... + 14421.

It is an arithmetic number, because the mean of its divisors is an integer number (6267456).

Almost surely, 278296135 is an apocalyptic number.

78296135 is a deficient number, since it is larger than the sum of its proper divisors (21983161).

78296135 is a wasteful number, since it uses less digits than its factorization.

78296135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7402.

The product of its digits is 90720, while the sum is 41.

The square root of 78296135 is about 8848.5103266030. The cubic root of 78296135 is about 427.8059048739.

The spelling of 78296135 in words is "seventy-eight million, two hundred ninety-six thousand, one hundred thirty-five".

Divisors: 1 5 17 85 127 635 2159 7253 10795 36265 123301 616505 921131 4605655 15659227 78296135