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85656284 = 2276745659
BaseRepresentation
bin1010001101100…
…00001011011100
312222011210022222
411012300023130
5133412000114
612255524512
72060031530
oct506601334
9188153288
1085656284
114439491a
1224829738
1314990abc
14b539bc0
1577be98e
hex51b02dc

85656284 has 24 divisors (see below), whose sum is σ = 173873280. Its totient is φ = 36161136.

The previous prime is 85656283. The next prime is 85656287. The reversal of 85656284 is 48265658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85656283) 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, 20954 + ... + 24705.

It is an arithmetic number, because the mean of its divisors is an integer number (7244720).

Almost surely, 285656284 is an apocalyptic number.

It is an amenable number.

85656284 is an abundant number, since it is smaller than the sum of its proper divisors (88216996).

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

85656284 is a wasteful number, since it uses less digits than its factorization.

85656284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45737 (or 45735 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 85656284 is about 9255.0680170380. The cubic root of 85656284 is about 440.8116629710.

The spelling of 85656284 in words is "eighty-five million, six hundred fifty-six thousand, two hundred eighty-four".

Divisors: 1 2 4 7 14 28 67 134 268 469 938 1876 45659 91318 182636 319613 639226 1278452 3059153 6118306 12236612 21414071 42828142 85656284