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7928328 = 233330347
BaseRepresentation
bin11110001111101000001000
3112220210121210
4132033220020
54012201303
6441533120
7124250442
oct36175010
915823553
107928328
114525741
1227a41a0
131847925
1410a5492
15a69203
hex78fa08

7928328 has 16 divisors (see below), whose sum is σ = 19820880. Its totient is φ = 2642768.

The previous prime is 7928317. The next prime is 7928329. The reversal of 7928328 is 8238297.

It is not an unprimeable number, because it can be changed into a prime (7928329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165150 + ... + 165197.

It is an arithmetic number, because the mean of its divisors is an integer number (1238805).

Almost surely, 27928328 is an apocalyptic number.

It is an amenable number.

7928328 is an abundant number, since it is smaller than the sum of its proper divisors (11892552).

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

7928328 is a wasteful number, since it uses less digits than its factorization.

7928328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330356 (or 330352 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 7928328 is about 2815.7286801111. The cubic root of 7928328 is about 199.4009407650.

It can be divided in two parts, 7928 and 328, that added together give a triangular number (8256 = T128).

The spelling of 7928328 in words is "seven million, nine hundred twenty-eight thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 330347 660694 991041 1321388 1982082 2642776 3964164 7928328