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78023364 = 2236501947
BaseRepresentation
bin1001010011010…
…00101011000100
312102210222221020
410221220223010
5124433221424
611424151140
71635121236
oct451505304
9172728836
1078023364
1140051121
12221684b0
131321a793
14a510256
156cb3079
hex4a68ac4

78023364 has 12 divisors (see below), whose sum is σ = 182054544. Its totient is φ = 26007784.

The previous prime is 78023347. The next prime is 78023377. The reversal of 78023364 is 46332087.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3250962 + ... + 3250985.

It is an arithmetic number, because the mean of its divisors is an integer number (15171212).

Almost surely, 278023364 is an apocalyptic number.

It is an amenable number.

78023364 is an abundant number, since it is smaller than the sum of its proper divisors (104031180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78023364 is a wasteful number, since it uses less digits than its factorization.

78023364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501954 (or 6501952 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 78023364 is about 8833.0834933221. The cubic root of 78023364 is about 427.3085247646.

It can be divided in two parts, 78023 and 364, that added together give a palindrome (78387).

The spelling of 78023364 in words is "seventy-eight million, twenty-three thousand, three hundred sixty-four".

Divisors: 1 2 3 4 6 12 6501947 13003894 19505841 26007788 39011682 78023364