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78482812 = 22171154159
BaseRepresentation
bin1001010110110…
…00110101111100
312110200100011211
410223120311330
5130042422222
611442054204
71642043602
oct453306574
9173610154
1078482812
1140335331
122234a364
131334b945
14a5cd872
156d54277
hex4ad8d7c

78482812 has 12 divisors (see below), whose sum is σ = 145424160. Its totient is φ = 36933056.

The previous prime is 78482801. The next prime is 78482827. The reversal of 78482812 is 21828487.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577012 + ... + 577147.

It is an arithmetic number, because the mean of its divisors is an integer number (12118680).

Almost surely, 278482812 is an apocalyptic number.

It is an amenable number.

78482812 is a deficient number, since it is larger than the sum of its proper divisors (66941348).

78482812 is a wasteful number, since it uses less digits than its factorization.

78482812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154180 (or 1154178 counting only the distinct ones).

The product of its digits is 57344, while the sum is 40.

The square root of 78482812 is about 8859.0525452782. The cubic root of 78482812 is about 428.1456327421.

The spelling of 78482812 in words is "seventy-eight million, four hundred eighty-two thousand, eight hundred twelve".

Divisors: 1 2 4 17 34 68 1154159 2308318 4616636 19620703 39241406 78482812