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85255786 = 2721179087
BaseRepresentation
bin1010001010011…
…10011001101010
312221102102221201
411011032121222
5133311141121
612243154414
72053443100
oct505163152
9187372851
1085255786
1144140a30
1224675a0a
1314880715
14b473c70
157740e91
hex514e66a

85255786 has 24 divisors (see below), whose sum is σ = 162288576. Its totient is φ = 33216120.

The previous prime is 85255783. The next prime is 85255811. The reversal of 85255786 is 68755258.

It is not an unprimeable number, because it can be changed into a prime (85255783) 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 11 ways as a sum of consecutive naturals, for example, 38466 + ... + 40621.

It is an arithmetic number, because the mean of its divisors is an integer number (6762024).

Almost surely, 285255786 is an apocalyptic number.

85255786 is a deficient number, since it is larger than the sum of its proper divisors (77032790).

85255786 is a wasteful number, since it uses less digits than its factorization.

85255786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79114 (or 79107 counting only the distinct ones).

The product of its digits is 672000, while the sum is 46.

The square root of 85255786 is about 9233.4059804603. The cubic root of 85255786 is about 440.1235637816.

The spelling of 85255786 in words is "eighty-five million, two hundred fifty-five thousand, seven hundred eighty-six".

Divisors: 1 2 7 11 14 22 49 77 98 154 539 1078 79087 158174 553609 869957 1107218 1739914 3875263 6089699 7750526 12179398 42627893 85255786