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86221356 = 223134391259
BaseRepresentation
bin1010010001110…
…10001000101100
320000020111110120
411020322020230
5134033040411
612320004540
72064604134
oct510721054
9200214416
1086221356
1144740421
1224a60750
1314b2b070
14b645ac4
157882106
hex523a22c

86221356 has 48 divisors (see below), whose sum is σ = 217324800. Its totient is φ = 26448192.

The previous prime is 86221351. The next prime is 86221357. The reversal of 86221356 is 65312268.

It is not an unprimeable number, because it can be changed into a prime (86221351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67855 + ... + 69113.

It is an arithmetic number, because the mean of its divisors is an integer number (4527600).

Almost surely, 286221356 is an apocalyptic number.

It is an amenable number.

86221356 is an abundant number, since it is smaller than the sum of its proper divisors (131103444).

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

86221356 is a wasteful number, since it uses less digits than its factorization.

86221356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1716 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 86221356 is about 9285.5455413239. The cubic root of 86221356 is about 441.7788797273.

The spelling of 86221356 in words is "eighty-six million, two hundred twenty-one thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 439 878 1259 1317 1756 2518 2634 3777 5036 5268 5707 7554 11414 15108 16367 17121 22828 32734 34242 49101 65468 68484 98202 196404 552701 1105402 1658103 2210804 3316206 6632412 7185113 14370226 21555339 28740452 43110678 86221356