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85662485 = 517132497
BaseRepresentation
bin1010001101100…
…01101100010101
312222012002211122
411012301230111
5133412144420
612300013325
72060055566
oct506615425
9188162748
1085662485
1144399547
1224831245
131499387c
14b53c16d
1577c1725
hex51b1b15

85662485 has 4 divisors (see below), whose sum is σ = 102794988. Its totient is φ = 68529984.

The previous prime is 85662463. The next prime is 85662523. The reversal of 85662485 is 58426658.

85662485 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58426658 = 229213329.

It can be written as a sum of positive squares in 2 ways, for example, as 51638596 + 34023889 = 7186^2 + 5833^2 .

It is a cyclic number.

It is not a de Polignac number, because 85662485 - 216 = 85596949 is a prime.

It is a super-2 number, since 2×856624852 = 14676122672750450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 8566244 + ... + 8566253.

It is an arithmetic number, because the mean of its divisors is an integer number (25698747).

Almost surely, 285662485 is an apocalyptic number.

It is an amenable number.

85662485 is a deficient number, since it is larger than the sum of its proper divisors (17132503).

85662485 is a wasteful number, since it uses less digits than its factorization.

85662485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17132502.

The product of its digits is 460800, while the sum is 44.

The square root of 85662485 is about 9255.4030166168. The cubic root of 85662485 is about 440.8223000857.

The spelling of 85662485 in words is "eighty-five million, six hundred sixty-two thousand, four hundred eighty-five".

Divisors: 1 5 17132497 85662485