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86147568 = 243213172707
BaseRepresentation
bin1010010001010…
…00000111110000
320000002202020200
411020220013300
5134023210233
612314235200
72064146043
oct510500760
9200082220
1086147568
114469aa41
1224a25b00
1314b035c0
14b626c5a
15786a313
hex52281f0

86147568 has 120 divisors (see below), whose sum is σ = 275013648. Its totient is φ = 24938496.

The previous prime is 86147563. The next prime is 86147587. The reversal of 86147568 is 86574168.

It is a happy number.

86147568 is a `hidden beast` number, since 86 + 1 + 4 + 7 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86147561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30471 + ... + 33177.

Almost surely, 286147568 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 86147568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137506824).

86147568 is an abundant number, since it is smaller than the sum of its proper divisors (188866080).

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

86147568 is a wasteful number, since it uses less digits than its factorization.

86147568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2742 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 86147568 is about 9281.5714186769. The cubic root of 86147568 is about 441.6528193752.

The spelling of 86147568 in words is "eighty-six million, one hundred forty-seven thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 17 18 24 26 34 36 39 48 51 52 68 72 78 102 104 117 136 144 153 156 204 208 221 234 272 306 312 408 442 468 612 624 663 816 884 936 1224 1326 1768 1872 1989 2448 2652 2707 3536 3978 5304 5414 7956 8121 10608 10828 15912 16242 21656 24363 31824 32484 35191 43312 46019 48726 64968 70382 92038 97452 105573 129936 138057 140764 184076 194904 211146 276114 281528 316719 368152 389808 414171 422292 552228 563056 598247 633438 736304 828342 844584 1104456 1196494 1266876 1656684 1689168 1794741 2208912 2392988 2533752 3313368 3589482 4785976 5067504 5384223 6626736 7178964 9571952 10768446 14357928 21536892 28715856 43073784 86147568