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306768325 = 5212270733
BaseRepresentation
bin10010010010001…
…110100111000101
3210101020110000211
4102102032213011
51112013041300
650235035421
710413326203
oct2222164705
9711213024
10306768325
11148187646
128689bb71
134b72a726
142ca56073
151bde94ba
hex1248e9c5

306768325 has 6 divisors (see below), whose sum is σ = 380392754. Its totient is φ = 245414640.

The previous prime is 306768323. The next prime is 306768361. The reversal of 306768325 is 523867603.

It can be written as a sum of positive squares in 3 ways, for example, as 1846881 + 304921444 = 1359^2 + 17462^2 .

It is not a de Polignac number, because 306768325 - 21 = 306768323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306768323) 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 5 ways as a sum of consecutive naturals, for example, 6135342 + ... + 6135391.

Almost surely, 2306768325 is an apocalyptic number.

It is an amenable number.

306768325 is a deficient number, since it is larger than the sum of its proper divisors (73624429).

306768325 is a wasteful number, since it uses less digits than its factorization.

306768325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12270743 (or 12270738 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 306768325 is about 17514.8030248701. The cubic root of 306768325 is about 674.4299347872.

The spelling of 306768325 in words is "three hundred six million, seven hundred sixty-eight thousand, three hundred twenty-five".

Divisors: 1 5 25 12270733 61353665 306768325