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78026313 = 3187113901
BaseRepresentation
bin1001010011010…
…01011001001001
312102211010222110
410221221121021
5124433320223
611424212533
71635132651
oct451513111
9172733873
1078026313
1140053362
122216a149
131321bc21
14a511361
156cb3d93
hex4a69649

78026313 has 8 divisors (see below), whose sum is σ = 104098176. Its totient is φ = 51986000.

The previous prime is 78026227. The next prime is 78026329. The reversal of 78026313 is 31362087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78026313 - 28 = 78026057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78026353) 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, 1338 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (13012272).

Almost surely, 278026313 is an apocalyptic number.

It is an amenable number.

78026313 is a deficient number, since it is larger than the sum of its proper divisors (26071863).

78026313 is a wasteful number, since it uses less digits than its factorization.

78026313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15775.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 78026313 is about 8833.2504209945. The cubic root of 78026313 is about 427.3139082672.

The spelling of 78026313 in words is "seventy-eight million, twenty-six thousand, three hundred thirteen".

Divisors: 1 3 1871 5613 13901 41703 26008771 78026313