Search a number
-
+
325805 = 5173833
BaseRepresentation
bin1001111100010101101
3121112220212
41033202231
540411210
610552205
72524604
oct1174255
9545825
10325805
11202867
12138665
13b53ac
1486a3b
1566805
hex4f8ad

325805 has 8 divisors (see below), whose sum is σ = 414072. Its totient is φ = 245248.

The previous prime is 325783. The next prime is 325807. The reversal of 325805 is 508523.

It can be written as a sum of positive squares in 4 ways, for example, as 32041 + 293764 = 179^2 + 542^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 325805 - 210 = 324781 is a prime.

It is a super-2 number, since 2×3258052 = 212297796050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1832 + ... + 2001.

It is an arithmetic number, because the mean of its divisors is an integer number (51759).

2325805 is an apocalyptic number.

It is an amenable number.

325805 is a deficient number, since it is larger than the sum of its proper divisors (88267).

325805 is a wasteful number, since it uses less digits than its factorization.

325805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 325805 is about 570.7933075992. The cubic root of 325805 is about 68.8101622135.

The spelling of 325805 in words is "three hundred twenty-five thousand, eight hundred five".

Divisors: 1 5 17 85 3833 19165 65161 325805