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328325780 = 22516416289
BaseRepresentation
bin10011100100011…
…101101010010100
3211212210200022002
4103210131222110
51133022411110
652325054432
711064503006
oct2344355224
9755720262
10328325780
11159371022
1291b57418
1353037a13
1431868376
151dc56aa5
hex1391da94

328325780 has 12 divisors (see below), whose sum is σ = 689484180. Its totient is φ = 131330304.

The previous prime is 328325771. The next prime is 328325783. The reversal of 328325780 is 87523823.

It can be written as a sum of positive squares in 2 ways, for example, as 173870596 + 154455184 = 13186^2 + 12428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328325783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8208125 + ... + 8208164.

It is an arithmetic number, because the mean of its divisors is an integer number (57457015).

Almost surely, 2328325780 is an apocalyptic number.

It is an amenable number.

328325780 is an abundant number, since it is smaller than the sum of its proper divisors (361158400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328325780 is a wasteful number, since it uses less digits than its factorization.

328325780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16416298 (or 16416296 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 328325780 is about 18119.7621397192. The cubic root of 328325780 is about 689.8716977714.

The spelling of 328325780 in words is "three hundred twenty-eight million, three hundred twenty-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 16416289 32832578 65665156 82081445 164162890 328325780