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86527420 = 2257618053
BaseRepresentation
bin1010010100001…
…00110110111100
320000211001022021
411022010312330
5134122334140
612330325524
72100320350
oct512046674
9200731267
1086527420
114492a371
1224b898a4
1314c07475
14b6c5460
1578e2b4a
hex5284dbc

86527420 has 24 divisors (see below), whose sum is σ = 207666144. Its totient is φ = 29666496.

The previous prime is 86527391. The next prime is 86527439. The reversal of 86527420 is 2472568.

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 7 ways as a sum of consecutive naturals, for example, 308887 + ... + 309166.

It is an arithmetic number, because the mean of its divisors is an integer number (8652756).

Almost surely, 286527420 is an apocalyptic number.

It is an amenable number.

86527420 is an abundant number, since it is smaller than the sum of its proper divisors (121138724).

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

86527420 is a wasteful number, since it uses less digits than its factorization.

86527420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618069 (or 618067 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 86527420 is about 9302.0116103991. The cubic root of 86527420 is about 442.3009968372.

Adding to 86527420 its reverse (2472568), we get a palindrome (88999988).

The spelling of 86527420 in words is "eighty-six million, five hundred twenty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 618053 1236106 2472212 3090265 4326371 6180530 8652742 12361060 17305484 21631855 43263710 86527420