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85801268 = 227792491
BaseRepresentation
bin1010001110100…
…11100100110100
312222110011012202
411013103210310
5133431120033
612303004032
72061204320
oct507234464
9188404182
1085801268
1144483843
1224899618
1314a11aa7
14b576980
1577ec8e8
hex51d3934

85801268 has 36 divisors (see below), whose sum is σ = 174156192. Its totient is φ = 36232560.

The previous prime is 85801259. The next prime is 85801279. The reversal of 85801268 is 86210858.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 174503 + ... + 174993.

It is an arithmetic number, because the mean of its divisors is an integer number (4837672).

Almost surely, 285801268 is an apocalyptic number.

It is an amenable number.

85801268 is an abundant number, since it is smaller than the sum of its proper divisors (88354924).

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

85801268 is a wasteful number, since it uses less digits than its factorization.

85801268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 85801268 is about 9262.8973868871. The cubic root of 85801268 is about 441.0602324477.

The spelling of 85801268 in words is "eighty-five million, eight hundred one thousand, two hundred sixty-eight".

Divisors: 1 2 4 7 14 28 79 158 316 491 553 982 1106 1964 2212 3437 6241 6874 12482 13748 24964 38789 43687 77578 87374 155156 174748 271523 543046 1086092 3064331 6128662 12257324 21450317 42900634 85801268