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86312130 = 2356174663
BaseRepresentation
bin1010010010100…
…00010011000010
320000102002222120
411021100103002
5134043442010
612321545110
72065432602
oct511202302
9200362876
1086312130
11447a2643
1224aa5196
1314b60488
14b66ac02
15789de70
hex52504c2

86312130 has 32 divisors (see below), whose sum is σ = 207529344. Its totient is φ = 22974336.

The previous prime is 86312099. The next prime is 86312131. The reversal of 86312130 is 3121368.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 86312130.

It is not an unprimeable number, because it can be changed into a prime (86312131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16179 + ... + 20841.

It is an arithmetic number, because the mean of its divisors is an integer number (6485292).

Almost surely, 286312130 is an apocalyptic number.

86312130 is an abundant number, since it is smaller than the sum of its proper divisors (121217214).

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

86312130 is a wasteful number, since it uses less digits than its factorization.

86312130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5290.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 86312130 is about 9290.4321750928. The cubic root of 86312130 is about 441.9338605540.

Adding to 86312130 its reverse (3121368), we get a palindrome (89433498).

The spelling of 86312130 in words is "eighty-six million, three hundred twelve thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 617 1234 1851 3085 3702 4663 6170 9255 9326 13989 18510 23315 27978 46630 69945 139890 2877071 5754142 8631213 14385355 17262426 28770710 43156065 86312130