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312304325 = 5212492173
BaseRepresentation
bin10010100111010…
…110001011000101
3210202122200222212
4102213112023011
51114422214300
650553433205
710511354144
oct2247261305
9722580885
10312304325
11150318953
128870b805
134c918478
142d69775b
151c63e935
hex129d62c5

312304325 has 6 divisors (see below), whose sum is σ = 387257394. Its totient is φ = 249843440.

The previous prime is 312304319. The next prime is 312304337. The reversal of 312304325 is 523403213.

It can be written as a sum of positive squares in 3 ways, for example, as 50608996 + 261695329 = 7114^2 + 16177^2 .

It is not a de Polignac number, because 312304325 - 212 = 312300229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312304325.

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, 6246062 + ... + 6246111.

It is an arithmetic number, because the mean of its divisors is an integer number (64542899).

Almost surely, 2312304325 is an apocalyptic number.

It is an amenable number.

312304325 is a deficient number, since it is larger than the sum of its proper divisors (74953069).

312304325 is a wasteful number, since it uses less digits than its factorization.

312304325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12492183 (or 12492178 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 312304325 is about 17672.1341382415. The cubic root of 312304325 is about 678.4627362645.

Adding to 312304325 its reverse (523403213), we get a palindrome (835707538).

The spelling of 312304325 in words is "three hundred twelve million, three hundred four thousand, three hundred twenty-five".

Divisors: 1 5 25 12492173 62460865 312304325