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831325 = 52113023
BaseRepresentation
bin11001010111101011101
31120020100211
43022331131
5203100300
625452421
710031455
oct3127535
91506324
10831325
11518650
12341111
13231511
14178d65
151164ba
hexcaf5d

831325 has 12 divisors (see below), whose sum is σ = 1124928. Its totient is φ = 604400.

The previous prime is 831323. The next prime is 831329. The reversal of 831325 is 523138.

It is not a de Polignac number, because 831325 - 21 = 831323 is a prime.

It is a super-2 number, since 2×8313252 = 1382202511250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 831296 and 831305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1237 + ... + 1786.

It is an arithmetic number, because the mean of its divisors is an integer number (93744).

2831325 is an apocalyptic number.

It is an amenable number.

831325 is a deficient number, since it is larger than the sum of its proper divisors (293603).

831325 is a wasteful number, since it uses less digits than its factorization.

831325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044 (or 3039 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 831325 is about 911.7702561501. The cubic root of 831325 is about 94.0279455164.

It can be divided in two parts, 8313 and 25, that added together give a palindrome (8338).

The spelling of 831325 in words is "eight hundred thirty-one thousand, three hundred twenty-five".

Divisors: 1 5 11 25 55 275 3023 15115 33253 75575 166265 831325