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85502885 = 5137916651
BaseRepresentation
bin1010001100010…
…10101110100101
312221212222220112
411012022232211
5133342043020
612252342405
72055522356
oct506125645
9187788815
1085502885
114429a646
1224774a05
1314939030
14b4d9d2d
15778e2c5
hex518aba5

85502885 has 16 divisors (see below), whose sum is σ = 111901440. Its totient is φ = 62337600.

The previous prime is 85502861. The next prime is 85502903. The reversal of 85502885 is 58820558.

It is not a de Polignac number, because 85502885 - 26 = 85502821 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 3191 + ... + 13460.

It is an arithmetic number, because the mean of its divisors is an integer number (6993840).

Almost surely, 285502885 is an apocalyptic number.

It is an amenable number.

85502885 is a deficient number, since it is larger than the sum of its proper divisors (26398555).

85502885 is a wasteful number, since it uses less digits than its factorization.

85502885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16748.

The product of its (nonzero) digits is 128000, while the sum is 41.

The square root of 85502885 is about 9246.7770060708. Note that the first 3 decimals coincide. The cubic root of 85502885 is about 440.5483607297.

The spelling of 85502885 in words is "eighty-five million, five hundred two thousand, eight hundred eighty-five".

Divisors: 1 5 13 65 79 395 1027 5135 16651 83255 216463 1082315 1315429 6577145 17100577 85502885