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85842041 = 571115031
BaseRepresentation
bin1010001110111…
…01100001111001
312222112020010212
411013131201321
5133433421131
612303520505
72061434225
oct507354171
9188466125
1085842041
114450143a
12248b9135
1314a2750c
14b587785
157809a2b
hex51dd879

85842041 has 4 divisors (see below), whose sum is σ = 85862784. Its totient is φ = 85821300.

The previous prime is 85842037. The next prime is 85842047. The reversal of 85842041 is 14024858.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14024858 = 27012429.

It is a cyclic number.

It is not a de Polignac number, because 85842041 - 22 = 85842037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85841989 and 85842007.

It is not an unprimeable number, because it can be changed into a prime (85842047) 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, 1805 + ... + 13226.

It is an arithmetic number, because the mean of its divisors is an integer number (21465696).

Almost surely, 285842041 is an apocalyptic number.

It is an amenable number.

85842041 is a deficient number, since it is larger than the sum of its proper divisors (20743).

85842041 is a wasteful number, since it uses less digits than its factorization.

85842041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20742.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 85842041 is about 9265.0980027197. The cubic root of 85842041 is about 441.1300857318.

Adding to 85842041 its reverse (14024858), we get a palindrome (99866899).

The spelling of 85842041 in words is "eighty-five million, eight hundred forty-two thousand, forty-one".

Divisors: 1 5711 15031 85842041