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86860404 = 22331017963
BaseRepresentation
bin1010010110101…
…10001001110100
320001102222002000
411023112021310
5134214013104
612341415300
72103205221
oct513261164
9201388060
1086860404
1145037564
122510a530
1314cc2bb7
14b770948
15795b639
hex52d6274

86860404 has 48 divisors (see below), whose sum is σ = 227451840. Its totient is φ = 28663200.

The previous prime is 86860399. The next prime is 86860439. The reversal of 86860404 is 40406868.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 6927 + ... + 14889.

It is an arithmetic number, because the mean of its divisors is an integer number (4738580).

Almost surely, 286860404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86860404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113725920).

86860404 is an abundant number, since it is smaller than the sum of its proper divisors (140591436).

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

86860404 is a wasteful number, since it uses less digits than its factorization.

86860404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077 (or 8069 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 86860404 is about 9319.8929178398. The cubic root of 86860404 is about 442.8676404627.

The spelling of 86860404 in words is "eighty-six million, eight hundred sixty thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 101 108 202 303 404 606 909 1212 1818 2727 3636 5454 7963 10908 15926 23889 31852 47778 71667 95556 143334 215001 286668 430002 804263 860004 1608526 2412789 3217052 4825578 7238367 9651156 14476734 21715101 28953468 43430202 86860404