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85092865 = 51113611951
BaseRepresentation
bin1010001001001…
…10101000000001
312221010011110121
411010212220001
5133240432430
612235500241
72052164104
oct504465001
9187104417
1085092865
114403a590
12245b7681
1314824510
14b43073b
15770ca7a
hex5126a01

85092865 has 32 divisors (see below), whose sum is σ = 121992192. Its totient is φ = 56160000.

The previous prime is 85092853. The next prime is 85092869. The reversal of 85092865 is 56829058.

It is not a de Polignac number, because 85092865 - 29 = 85092353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85092869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42640 + ... + 44590.

It is an arithmetic number, because the mean of its divisors is an integer number (3812256).

Almost surely, 285092865 is an apocalyptic number.

It is an amenable number.

85092865 is a deficient number, since it is larger than the sum of its proper divisors (36899327).

85092865 is a wasteful number, since it uses less digits than its factorization.

85092865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 85092865 is about 9224.5793942055. The cubic root of 85092865 is about 439.8430311296.

The spelling of 85092865 in words is "eighty-five million, ninety-two thousand, eight hundred sixty-five".

Divisors: 1 5 11 13 55 61 65 143 305 671 715 793 1951 3355 3965 8723 9755 21461 25363 43615 107305 119011 126815 278993 595055 1309121 1394965 1547143 6545605 7735715 17018573 85092865