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85285066 = 242642533
BaseRepresentation
bin1010001010101…
…01100011001010
312221110221010011
411011111203022
5133313110231
612243542134
72053624336
oct505254312
9187427104
1085285066
1144160a29
122468a94a
1314890b49
14b4807c6
1577499b1
hex51558ca

85285066 has 4 divisors (see below), whose sum is σ = 127927602. Its totient is φ = 42642532.

The previous prime is 85285049. The next prime is 85285121. The reversal of 85285066 is 66058258.

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

It can be written as a sum of positive squares in only one way, i.e., 45279441 + 40005625 = 6729^2 + 6325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21321265 + ... + 21321268.

Almost surely, 285285066 is an apocalyptic number.

85285066 is a deficient number, since it is larger than the sum of its proper divisors (42642536).

85285066 is a wasteful number, since it uses less digits than its factorization.

85285066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42642535.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 85285066 is about 9234.9913914416. The cubic root of 85285066 is about 440.1739429350.

The spelling of 85285066 in words is "eighty-five million, two hundred eighty-five thousand, sixty-six".

Divisors: 1 2 42642533 85285066