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85497386 = 21317193433
BaseRepresentation
bin1010001100010…
…01011000101010
312221212201100212
411012021120222
5133341404021
612252301122
72055500342
oct506113052
9187781325
1085497386
11442964a7
12247717a2
1314936690
14b4d7d22
15778c85b
hex518962a

85497386 has 16 divisors (see below), whose sum is σ = 146236104. Its totient is φ = 37138944.

The previous prime is 85497367. The next prime is 85497389. The reversal of 85497386 is 68379458.

It can be written as a sum of positive squares in 4 ways, for example, as 43494025 + 42003361 = 6595^2 + 6481^2 .

It is not an unprimeable number, because it can be changed into a prime (85497389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96275 + ... + 97158.

Almost surely, 285497386 is an apocalyptic number.

85497386 is a deficient number, since it is larger than the sum of its proper divisors (60738718).

85497386 is a wasteful number, since it uses less digits than its factorization.

85497386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193465.

The product of its digits is 1451520, while the sum is 50.

The square root of 85497386 is about 9246.4796544415. The cubic root of 85497386 is about 440.5389161073.

The spelling of 85497386 in words is "eighty-five million, four hundred ninety-seven thousand, three hundred eighty-six".

Divisors: 1 2 13 17 26 34 221 442 193433 386866 2514629 3288361 5029258 6576722 42748693 85497386