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86678608 = 24192391193
BaseRepresentation
bin1010010101010…
…01110001010000
320001002201200211
411022221301100
5134142203413
612333453504
72101520212
oct512516120
9201081624
1086678608
1144a22a15
1225041294
1314c5b223
14b7245b2
15792283d
hex52a9c50

86678608 has 40 divisors (see below), whose sum is σ = 177667200. Its totient is φ = 40852224.

The previous prime is 86678587. The next prime is 86678609. The reversal of 86678608 is 80687668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86678609) 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 7 ways as a sum of consecutive naturals, for example, 72060 + ... + 73252.

It is an arithmetic number, because the mean of its divisors is an integer number (4441680).

Almost surely, 286678608 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 86678608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88833600).

86678608 is an abundant number, since it is smaller than the sum of its proper divisors (90988592).

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

86678608 is a wasteful number, since it uses less digits than its factorization.

86678608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459 (or 1453 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 86678608 is about 9310.1346929032. The cubic root of 86678608 is about 442.5584554692.

The spelling of 86678608 in words is "eighty-six million, six hundred seventy-eight thousand, six hundred eight".

Divisors: 1 2 4 8 16 19 38 76 152 239 304 478 956 1193 1912 2386 3824 4541 4772 9082 9544 18164 19088 22667 36328 45334 72656 90668 181336 285127 362672 570254 1140508 2281016 4562032 5417413 10834826 21669652 43339304 86678608