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8280325 = 52331213
BaseRepresentation
bin11111100101100100000101
3120120200110201
4133211210011
54104432300
6453250501
7130244614
oct37454405
916520421
108280325
114746149
122933a31
13193bc01
14115787b
15ad866a
hex7e5905

8280325 has 6 divisors (see below), whose sum is σ = 10267634. Its totient is φ = 6624240.

The previous prime is 8280289. The next prime is 8280331. The reversal of 8280325 is 5230828.

It can be written as a sum of positive squares in 3 ways, for example, as 20449 + 8259876 = 143^2 + 2874^2 .

It is not a de Polignac number, because 8280325 - 27 = 8280197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8280293 and 8280302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 165582 + ... + 165631.

Almost surely, 28280325 is an apocalyptic number.

It is an amenable number.

8280325 is a deficient number, since it is larger than the sum of its proper divisors (1987309).

8280325 is a wasteful number, since it uses less digits than its factorization.

8280325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331223 (or 331218 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 8280325 is about 2877.5553860873. Note that the first 3 decimals coincide. The cubic root of 8280325 is about 202.3092752818.

It can be divided in two parts, 82803 and 25, that added together give a palindrome (82828).

The spelling of 8280325 in words is "eight million, two hundred eighty thousand, three hundred twenty-five".

Divisors: 1 5 25 331213 1656065 8280325