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68265558 = 2331264177
BaseRepresentation
bin1000001000110…
…10011001010110
311202110020202000
410010122121112
5114433444213
610435100130
71456150644
oct404323126
9152406660
1068265558
1135596a19
121aa41646
13111b222a
1490d0194
155ed6c73
hex411a656

68265558 has 16 divisors (see below), whose sum is σ = 151701360. Its totient is φ = 22755168.

The previous prime is 68265551. The next prime is 68265583. The reversal of 68265558 is 85556286.

It is a super-3 number, since 3×682655583 (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68265551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 632035 + ... + 632142.

It is an arithmetic number, because the mean of its divisors is an integer number (9481335).

Almost surely, 268265558 is an apocalyptic number.

68265558 is an abundant number, since it is smaller than the sum of its proper divisors (83435802).

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

68265558 is a wasteful number, since it uses less digits than its factorization.

68265558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264188 (or 1264182 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 68265558 is about 8262.2973802690. The cubic root of 68265558 is about 408.6961514788.

The spelling of 68265558 in words is "sixty-eight million, two hundred sixty-five thousand, five hundred fifty-eight".

Divisors: 1 2 3 6 9 18 27 54 1264177 2528354 3792531 7585062 11377593 22755186 34132779 68265558