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68471286 = 2313877837
BaseRepresentation
bin1000001010011…
…00100111110110
311202211200221120
410011030213312
5120012040121
610443324410
71460665512
oct405144766
9152750846
1068471286
1135717544
121ab20706
1311254a70
149145142
156027bc6
hex414c9f6

68471286 has 16 divisors (see below), whose sum is σ = 147476784. Its totient is φ = 21068064.

The previous prime is 68471279. The next prime is 68471287. The reversal of 68471286 is 68217486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68471287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438841 + ... + 438996.

It is an arithmetic number, because the mean of its divisors is an integer number (9217299).

Almost surely, 268471286 is an apocalyptic number.

68471286 is an abundant number, since it is smaller than the sum of its proper divisors (79005498).

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

68471286 is a wasteful number, since it uses less digits than its factorization.

68471286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877855.

The product of its digits is 129024, while the sum is 42.

The square root of 68471286 is about 8274.7378206201. The cubic root of 68471286 is about 409.1062944696.

The spelling of 68471286 in words is "sixty-eight million, four hundred seventy-one thousand, two hundred eighty-six".

Divisors: 1 2 3 6 13 26 39 78 877837 1755674 2633511 5267022 11411881 22823762 34235643 68471286