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86696428 = 227132943191
BaseRepresentation
bin1010010101011…
…10000111101100
320001010122010211
411022232013230
5134143241203
612334112204
72101623160
oct512560754
9201118124
1086696428
1144a35345
122504b664
1314c66380
14b72aca0
157927c6d
hex52ae1ec

86696428 has 96 divisors (see below), whose sum is σ = 198696960. Its totient is φ = 32175360.

The previous prime is 86696383. The next prime is 86696431. The reversal of 86696428 is 82469668.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453813 + ... + 454003.

It is an arithmetic number, because the mean of its divisors is an integer number (2069760).

Almost surely, 286696428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86696428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99348480).

86696428 is an abundant number, since it is smaller than the sum of its proper divisors (112000532).

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

86696428 is a wasteful number, since it uses less digits than its factorization.

86696428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 285 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 86696428 is about 9311.0916653205. The cubic root of 86696428 is about 442.5887814881.

The spelling of 86696428 in words is "eighty-six million, six hundred ninety-six thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 13 14 26 28 29 43 52 58 86 91 116 172 182 191 203 301 364 377 382 406 559 602 754 764 812 1118 1204 1247 1337 1508 2236 2483 2494 2639 2674 3913 4966 4988 5278 5348 5539 7826 8213 8729 9932 10556 11078 15652 16211 16426 17381 17458 22156 32422 32852 34762 34916 38773 57491 64844 69524 72007 77546 106769 113477 114982 144014 155092 213538 226954 229964 238177 288028 427076 453908 476354 504049 747383 952708 1008098 1494766 1667239 2016196 2989532 3096301 3334478 6192602 6668956 12385204 21674107 43348214 86696428