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85208886 = 23274315727
BaseRepresentation
bin1010001010000…
…10111100110110
312221100001121200
411011002330312
5133303141021
612242153330
72053156260
oct505027466
9187301550
1085208886
1144109774
1224652846
1314865279
14b460b30
157732126
hex5142f36

85208886 has 48 divisors (see below), whose sum is σ = 215913984. Its totient is φ = 23777712.

The previous prime is 85208869. The next prime is 85208899. The reversal of 85208886 is 68880258.

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 23 ways as a sum of consecutive naturals, for example, 2446 + ... + 13281.

It is an arithmetic number, because the mean of its divisors is an integer number (4498208).

Almost surely, 285208886 is an apocalyptic number.

85208886 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

85208886 is an abundant number, since it is smaller than the sum of its proper divisors (130705098).

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

85208886 is a wasteful number, since it uses less digits than its factorization.

85208886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15785 (or 15782 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 85208886 is about 9230.8659398780. The cubic root of 85208886 is about 440.0428436242.

The spelling of 85208886 in words is "eighty-five million, two hundred eight thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 7 9 14 18 21 42 43 63 86 126 129 258 301 387 602 774 903 1806 2709 5418 15727 31454 47181 94362 110089 141543 220178 283086 330267 660534 676261 990801 1352522 1981602 2028783 4057566 4733827 6086349 9467654 12172698 14201481 28402962 42604443 85208886