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78044313 = 3231131077
BaseRepresentation
bin1001010011011…
…01110010011001
312102212001200010
410221231302121
5124434404223
611424432133
71635236304
oct451556231
9172761603
1078044313
1140065936
1222178649
1313227189
14a517b3b
156cb9393
hex4a6dc99

78044313 has 8 divisors (see below), whose sum is σ = 108583488. Its totient is φ = 49767344.

The previous prime is 78044311. The next prime is 78044321. The reversal of 78044313 is 31344087.

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 78044313 - 21 = 78044311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78044311) 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, 565470 + ... + 565607.

It is an arithmetic number, because the mean of its divisors is an integer number (13572936).

Almost surely, 278044313 is an apocalyptic number.

It is an amenable number.

78044313 is a deficient number, since it is larger than the sum of its proper divisors (30539175).

78044313 is a wasteful number, since it uses less digits than its factorization.

78044313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131103.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 78044313 is about 8834.2692397278. The cubic root of 78044313 is about 427.3467649565.

The spelling of 78044313 in words is "seventy-eight million, forty-four thousand, three hundred thirteen".

Divisors: 1 3 23 69 1131077 3393231 26014771 78044313