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860285 = 51729349
BaseRepresentation
bin11010010000001111101
31121201002102
43102001331
5210012120
630234445
710212056
oct3220175
91551072
10860285
11538388
12355a25
1324175a
1418572d
1511ed75
hexd207d

860285 has 16 divisors (see below), whose sum is σ = 1134000. Its totient is φ = 623616.

The previous prime is 860267. The next prime is 860291. The reversal of 860285 is 582068.

It is a happy number.

860285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 37636 + 822649 = 194^2 + 907^2 .

It is not a de Polignac number, because 860285 - 28 = 860029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 860285.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2291 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (70875).

2860285 is an apocalyptic number.

860285 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

860285 is a deficient number, since it is larger than the sum of its proper divisors (273715).

860285 is a wasteful number, since it uses less digits than its factorization.

860285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 860285 is about 927.5154985228. The cubic root of 860285 is about 95.1073578554.

The spelling of 860285 in words is "eight hundred sixty thousand, two hundred eighty-five".

Divisors: 1 5 17 29 85 145 349 493 1745 2465 5933 10121 29665 50605 172057 860285