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86428120 = 2352974507
BaseRepresentation
bin1010010011011…
…00100111011000
320000122000002111
411021230213120
5134111144440
612324242104
72066425012
oct511544730
9200560074
1086428120
11448717a9
1224b40334
1314ba11cc
14b69b1b2
1578c34ea
hex526c9d8

86428120 has 32 divisors (see below), whose sum is σ = 201171600. Its totient is φ = 33378688.

The previous prime is 86428117. The next prime is 86428127. The reversal of 86428120 is 2182468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86428127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36094 + ... + 38413.

Almost surely, 286428120 is an apocalyptic number.

It is an amenable number.

86428120 is an abundant number, since it is smaller than the sum of its proper divisors (114743480).

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

86428120 is a wasteful number, since it uses less digits than its factorization.

86428120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74547 (or 74543 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 86428120 is about 9296.6725230052. The cubic root of 86428120 is about 442.1317352669.

The spelling of 86428120 in words is "eighty-six million, four hundred twenty-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1160 74507 149014 298028 372535 596056 745070 1490140 2160703 2980280 4321406 8642812 10803515 17285624 21607030 43214060 86428120