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86803864 = 2371550069
BaseRepresentation
bin1010010110010…
…00010110011000
320001100002111221
411023020112120
5134210210424
612340301424
72102551330
oct513102630
9201302457
1086803864
1144aa9034
12250a1874
1314ca3244
14b7580c0
1579499e4
hex52c8598

86803864 has 16 divisors (see below), whose sum is σ = 186008400. Its totient is φ = 37201632.

The previous prime is 86803861. The next prime is 86803867. The reversal of 86803864 is 46830868.

It is an interprime number because it is at equal distance from previous prime (86803861) and next prime (86803867).

It is a self number, because there is not a number n which added to its sum of digits gives 86803864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86803861) 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 3 ways as a sum of consecutive naturals, for example, 774979 + ... + 775090.

It is an arithmetic number, because the mean of its divisors is an integer number (11625525).

Almost surely, 286803864 is an apocalyptic number.

It is an amenable number.

86803864 is an abundant number, since it is smaller than the sum of its proper divisors (99204536).

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

86803864 is a wasteful number, since it uses less digits than its factorization.

86803864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550082 (or 1550078 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 86803864 is about 9316.8591274098. The cubic root of 86803864 is about 442.7715277338.

It can be divided in two parts, 8680 and 3864, that added together give a square (12544 = 1122).

The spelling of 86803864 in words is "eighty-six million, eight hundred three thousand, eight hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 1550069 3100138 6200276 10850483 12400552 21700966 43401932 86803864