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86199930 = 2335319259
BaseRepresentation
bin1010010001101…
…00111001111010
320000012102002000
411020310321322
5134031344210
612315321430
72064454515
oct510647172
9200172060
1086199930
1144726313
1224a50276
1314b2139b
14b63bd7c
15787aac0
hex5234e7a

86199930 has 32 divisors (see below), whose sum is σ = 229867200. Its totient is φ = 22986576.

The previous prime is 86199913. The next prime is 86199931. The reversal of 86199930 is 3999168.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86199931) 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, 159360 + ... + 159899.

It is an arithmetic number, because the mean of its divisors is an integer number (7183350).

Almost surely, 286199930 is an apocalyptic number.

86199930 is an abundant number, since it is smaller than the sum of its proper divisors (143667270).

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

86199930 is a wasteful number, since it uses less digits than its factorization.

86199930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319275 (or 319269 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 86199930 is about 9284.3917409812. The cubic root of 86199930 is about 441.7422826904.

The spelling of 86199930 in words is "eighty-six million, one hundred ninety-nine thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 319259 638518 957777 1596295 1915554 2873331 3192590 4788885 5746662 8619993 9577770 14366655 17239986 28733310 43099965 86199930