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85433085 = 32553113317
BaseRepresentation
bin1010001011110…
…01101011111101
312221202110011100
411011321223331
5133332324320
612251043313
72055112023
oct505715375
9187673140
1085433085
1144252161
1224740539
131491332a
14b4bc713
157778790
hex5179afd

85433085 has 48 divisors (see below), whose sum is σ = 152693424. Its totient is φ = 44169216.

The previous prime is 85433083. The next prime is 85433113. The reversal of 85433085 is 58033458.

85433085 is a `hidden beast` number, since 8 + 543 + 30 + 85 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 23794884 + 61638201 = 4878^2 + 7851^2 .

It is not a de Polignac number, because 85433085 - 21 = 85433083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85433081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269347 + ... + 269663.

It is an arithmetic number, because the mean of its divisors is an integer number (3181113).

Almost surely, 285433085 is an apocalyptic number.

It is an amenable number.

85433085 is a deficient number, since it is larger than the sum of its proper divisors (67260339).

85433085 is a wasteful number, since it uses less digits than its factorization.

85433085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 85433085 is about 9243.0019474195. The cubic root of 85433085 is about 440.4284480234.

Subtracting from 85433085 its sum of digits (36), we obtain a square (85433049 = 92432).

It can be divided in two parts, 8543 and 3085, that added together give a triangular number (11628 = T152).

The spelling of 85433085 in words is "eighty-five million, four hundred thirty-three thousand, eighty-five".

Divisors: 1 3 5 9 15 45 53 113 159 265 317 339 477 565 795 951 1017 1585 1695 2385 2853 4755 5085 5989 14265 16801 17967 29945 35821 50403 53901 84005 89835 107463 151209 179105 252015 269505 322389 537315 756045 1611945 1898513 5695539 9492565 17086617 28477695 85433085