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86860284 = 22372234637
BaseRepresentation
bin1010010110101…
…10000111111100
320001102221220120
411023112013330
5134214012114
612341414540
72103204660
oct513260774
9201387816
1086860284
1145037465
122510a450
1314cc2b24
14b7708a0
15795b5a9
hex52d61fc

86860284 has 48 divisors (see below), whose sum is σ = 232716288. Its totient is φ = 24700608.

The previous prime is 86860273. The next prime is 86860313. The reversal of 86860284 is 48206868.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16414 + ... + 21050.

It is an arithmetic number, because the mean of its divisors is an integer number (4848256).

Almost surely, 286860284 is an apocalyptic number.

86860284 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86860284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116358144).

86860284 is an abundant number, since it is smaller than the sum of its proper divisors (145856004).

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

86860284 is a wasteful number, since it uses less digits than its factorization.

86860284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874 (or 4872 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 86860284 is about 9319.8864799953. The cubic root of 86860284 is about 442.8674365181.

The spelling of 86860284 in words is "eighty-six million, eight hundred sixty thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 223 446 669 892 1338 1561 2676 3122 4637 4683 6244 9274 9366 13911 18548 18732 27822 32459 55644 64918 97377 129836 194754 389508 1034051 2068102 3102153 4136204 6204306 7238357 12408612 14476714 21715071 28953428 43430142 86860284