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85866411 = 328622137
BaseRepresentation
bin1010001111000…
…11011110101011
312222120110120110
411013203132223
5133440211121
612304225403
72061565251
oct507433653
9188513513
1085866411
1144518784
122490b263
1314a35637
14b5925d1
157811d76
hex51e37ab

85866411 has 4 divisors (see below), whose sum is σ = 114488552. Its totient is φ = 57244272.

The previous prime is 85866401. The next prime is 85866421. The reversal of 85866411 is 11466858.

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

It is an interprime number because it is at equal distance from previous prime (85866401) and next prime (85866421).

It is not a de Polignac number, because 85866411 - 213 = 85858219 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 85866411.

It is not an unprimeable number, because it can be changed into a prime (85866401) 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, 14311066 + ... + 14311071.

It is an arithmetic number, because the mean of its divisors is an integer number (28622138).

Almost surely, 285866411 is an apocalyptic number.

85866411 is a deficient number, since it is larger than the sum of its proper divisors (28622141).

85866411 is a wasteful number, since it uses less digits than its factorization.

85866411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28622140.

The product of its digits is 46080, while the sum is 39.

The square root of 85866411 is about 9266.4130600789. The cubic root of 85866411 is about 441.1718264410.

The spelling of 85866411 in words is "eighty-five million, eight hundred sixty-six thousand, four hundred eleven".

Divisors: 1 3 28622137 85866411