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328607215 = 579831917
BaseRepresentation
bin10011100101100…
…010010111101111
3211220022222100121
4103211202113233
51133110412330
652335105411
711100054346
oct2345422757
9756288317
10328607215
11159543512
1292072267
1353105b51
14318dcb5d
151dcb017a
hex139625ef

328607215 has 8 divisors (see below), whose sum is σ = 399320640. Its totient is φ = 259557792.

The previous prime is 328607203. The next prime is 328607219. The reversal of 328607215 is 512706823.

It is a happy number.

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 328607215 - 223 = 320218607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328607219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415564 + ... + 416353.

It is an arithmetic number, because the mean of its divisors is an integer number (49915080).

Almost surely, 2328607215 is an apocalyptic number.

328607215 is a deficient number, since it is larger than the sum of its proper divisors (70713425).

328607215 is an equidigital number, since it uses as much as digits as its factorization.

328607215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832001.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 328607215 is about 18127.5264446090. The cubic root of 328607215 is about 690.0687567134.

The spelling of 328607215 in words is "three hundred twenty-eight million, six hundred seven thousand, two hundred fifteen".

Divisors: 1 5 79 395 831917 4159585 65721443 328607215