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85625306 = 2133293281
BaseRepresentation
bin1010001101010…
…00100111011010
312222010012211122
411012220213122
5133410002211
612255125242
72056542314
oct506504732
9188105748
1085625306
1144373618
1224813822
131497c980
14b52c7b4
1577b56db
hex51a89da

85625306 has 8 divisors (see below), whose sum is σ = 138317844. Its totient is φ = 39519360.

The previous prime is 85625299. The next prime is 85625321. The reversal of 85625306 is 60352658.

It can be written as a sum of positive squares in 2 ways, for example, as 67486225 + 18139081 = 8215^2 + 4259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×856253063 (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1646615 + ... + 1646666.

Almost surely, 285625306 is an apocalyptic number.

85625306 is a deficient number, since it is larger than the sum of its proper divisors (52692538).

85625306 is a wasteful number, since it uses less digits than its factorization.

85625306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293296.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 85625306 is about 9253.3942961488. The cubic root of 85625306 is about 440.7585160230.

It can be divided in two parts, 856 and 25306, that added together give a palindrome (26162).

The spelling of 85625306 in words is "eighty-five million, six hundred twenty-five thousand, three hundred six".

Divisors: 1 2 13 26 3293281 6586562 42812653 85625306