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85587085 = 517117417
BaseRepresentation
bin1010001100111…
…11010010001101
312222001021102001
411012133102031
5133402241320
612254232301
72056323013
oct506372215
9188037361
1085587085
1144347931
12247b5691
131496845c
14b51c8b3
1577a920a
hex519f48d

85587085 has 4 divisors (see below), whose sum is σ = 102704508. Its totient is φ = 68469664.

The previous prime is 85587083. The next prime is 85587107. The reversal of 85587085 is 58078558.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31505769 + 54081316 = 5613^2 + 7354^2 .

It is a cyclic number.

It is not a de Polignac number, because 85587085 - 21 = 85587083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85587083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8558704 + ... + 8558713.

It is an arithmetic number, because the mean of its divisors is an integer number (25676127).

Almost surely, 285587085 is an apocalyptic number.

It is an amenable number.

85587085 is a deficient number, since it is larger than the sum of its proper divisors (17117423).

85587085 is a wasteful number, since it uses less digits than its factorization.

85587085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17117422.

The product of its (nonzero) digits is 448000, while the sum is 46.

The square root of 85587085 is about 9251.3288234718. The cubic root of 85587085 is about 440.6929250615.

The spelling of 85587085 in words is "eighty-five million, five hundred eighty-seven thousand, eighty-five".

Divisors: 1 5 17117417 85587085