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86197328 = 247769619
BaseRepresentation
bin1010010001101…
…00010001010000
320000012021111122
411020310101100
5134031303303
612315301412
72064444110
oct510642120
9200167448
1086197328
1144724368
1224a4a868
1314b20149
14b63b040
157879e38
hex5234450

86197328 has 20 divisors (see below), whose sum is σ = 190865760. Its totient is φ = 36941664.

The previous prime is 86197297. The next prime is 86197369. The reversal of 86197328 is 82379168.

It is a super-3 number, since 3×861973283 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384698 + ... + 384921.

It is an arithmetic number, because the mean of its divisors is an integer number (9543288).

Almost surely, 286197328 is an apocalyptic number.

It is an amenable number.

86197328 is an abundant number, since it is smaller than the sum of its proper divisors (104668432).

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

86197328 is a wasteful number, since it uses less digits than its factorization.

86197328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769634 (or 769628 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 86197328 is about 9284.2516122733. The cubic root of 86197328 is about 441.7378378879.

It can be divided in two parts, 861 and 97328, that added together give a palindrome (98189).

The spelling of 86197328 in words is "eighty-six million, one hundred ninety-seven thousand, three hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 769619 1539238 3078476 5387333 6156952 10774666 12313904 21549332 43098664 86197328