Search a number
-
+
85500569 = 7111110397
BaseRepresentation
bin1010001100010…
…10001010011001
312221212212201202
411012022022121
5133342004234
612252323545
72055512540
oct506121231
9187785652
1085500569
1144298930
12247735b5
1314937c6b
14b4d9157
15778d77e
hex518a299

85500569 has 8 divisors (see below), whose sum is σ = 106598208. Its totient is φ = 66623760.

The previous prime is 85500557. The next prime is 85500601. The reversal of 85500569 is 96500558.

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

It is not a de Polignac number, because 85500569 - 220 = 84451993 is a prime.

It is a super-2 number, since 2×855005692 = 14620694598647522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85500529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555122 + ... + 555275.

It is an arithmetic number, because the mean of its divisors is an integer number (13324776).

Almost surely, 285500569 is an apocalyptic number.

It is an amenable number.

85500569 is a deficient number, since it is larger than the sum of its proper divisors (21097639).

85500569 is a wasteful number, since it uses less digits than its factorization.

85500569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110415.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 85500569 is about 9246.6517723985. The cubic root of 85500569 is about 440.5443830112.

The spelling of 85500569 in words is "eighty-five million, five hundred thousand, five hundred sixty-nine".

Divisors: 1 7 11 77 1110397 7772779 12214367 85500569