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78894283 = 1311935087
BaseRepresentation
bin1001011001111…
…01010011001011
312111110020121111
410230331103023
5130144104113
611454551151
71645406326
oct454752313
9174406544
1078894283
1140596496
12225084b7
1313464010
14a6997bd
156dd613d
hex4b3d4cb

78894283 has 8 divisors (see below), whose sum is σ = 85051008. Its totient is φ = 72750144.

The previous prime is 78894253. The next prime is 78894359. The reversal of 78894283 is 38249887.

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 78894283 - 225 = 45339851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78894223) 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, 12966 + ... + 18052.

It is an arithmetic number, because the mean of its divisors is an integer number (10631376).

Almost surely, 278894283 is an apocalyptic number.

78894283 is a deficient number, since it is larger than the sum of its proper divisors (6156725).

78894283 is a wasteful number, since it uses less digits than its factorization.

78894283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293.

The product of its digits is 774144, while the sum is 49.

The square root of 78894283 is about 8882.2453805330. The cubic root of 78894283 is about 428.8925586229.

The spelling of 78894283 in words is "seventy-eight million, eight hundred ninety-four thousand, two hundred eighty-three".

Divisors: 1 13 1193 5087 15509 66131 6068791 78894283