Search a number
-
+
85365293 = 1317337957
BaseRepresentation
bin1010001011010…
…01001000101101
312221122000011112
411011221020231
5133323142133
612245401405
72054410256
oct505511055
9187560145
1085365293
1144206232
1224709265
13148bb510
14b4a1b2d
157763648
hex516922d

85365293 has 8 divisors (see below), whose sum is σ = 92465688. Its totient is φ = 78341184.

The previous prime is 85365221. The next prime is 85365307. The reversal of 85365293 is 39256358.

It can be written as a sum of positive squares in 4 ways, for example, as 964324 + 84400969 = 982^2 + 9187^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 85365293 - 28 = 85365037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85365293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85365193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16730 + ... + 21227.

It is an arithmetic number, because the mean of its divisors is an integer number (11558211).

Almost surely, 285365293 is an apocalyptic number.

It is an amenable number.

85365293 is a deficient number, since it is larger than the sum of its proper divisors (7100395).

85365293 is a wasteful number, since it uses less digits than its factorization.

85365293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38143.

The product of its digits is 194400, while the sum is 41.

The square root of 85365293 is about 9239.3340127955. The cubic root of 85365293 is about 440.3119224164.

It can be divided in two parts, 85365 and 293, that added together give a palindrome (85658).

The spelling of 85365293 in words is "eighty-five million, three hundred sixty-five thousand, two hundred ninety-three".

Divisors: 1 13 173 2249 37957 493441 6566561 85365293