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86130012 = 22341175061
BaseRepresentation
bin1010010001000…
…11110101011100
320000001212011110
411020203311130
5134022130022
612314022020
72064043623
oct510436534
9200055143
1086130012
1144688831
1224a17910
1314ac8607
14b6206ba
15786500c
hex5223d5c

86130012 has 24 divisors (see below), whose sum is σ = 205872912. Its totient is φ = 28009600.

The previous prime is 86130001. The next prime is 86130019. The reversal of 86130012 is 21003168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86130019) 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, 87039 + ... + 88022.

It is an arithmetic number, because the mean of its divisors is an integer number (8578038).

Almost surely, 286130012 is an apocalyptic number.

86130012 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

86130012 is an abundant number, since it is smaller than the sum of its proper divisors (119742900).

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

86130012 is a wasteful number, since it uses less digits than its factorization.

86130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175109 (or 175107 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 86130012 is about 9280.6256254630. The cubic root of 86130012 is about 441.6228158830.

The spelling of 86130012 in words is "eighty-six million, one hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 175061 350122 525183 700244 1050366 2100732 7177501 14355002 21532503 28710004 43065006 86130012