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85860286 = 242930143
BaseRepresentation
bin1010001111000…
…01111110111110
312222120011011121
411013201332332
5133440012121
612304141154
72061541351
oct507417676
9188504147
1085860286
1144514116
12249077ba
1314a32905
14b590298
157810141
hex51e1fbe

85860286 has 4 divisors (see below), whose sum is σ = 128790432. Its totient is φ = 42930142.

The previous prime is 85860277. The next prime is 85860287. The reversal of 85860286 is 68206858.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85860287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21465070 + ... + 21465073.

It is an arithmetic number, because the mean of its divisors is an integer number (32197608).

Almost surely, 285860286 is an apocalyptic number.

85860286 is a deficient number, since it is larger than the sum of its proper divisors (42930146).

85860286 is a wasteful number, since it uses less digits than its factorization.

85860286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42930145.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 85860286 is about 9266.0825595286. The cubic root of 85860286 is about 441.1613363411.

The spelling of 85860286 in words is "eighty-five million, eight hundred sixty thousand, two hundred eighty-six".

Divisors: 1 2 42930143 85860286