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328720248 = 23331521853
BaseRepresentation
bin10011100101111…
…101111101111000
3211220112201102000
4103211331331320
51133123021443
652341341000
711101035033
oct2345757570
9756481360
10328720248
1115961042a
1292107760
135314542c
143192c01a
151dcd38d3
hex1397df78

328720248 has 32 divisors (see below), whose sum is σ = 913112400. Its totient is φ = 109573344.

The previous prime is 328720237. The next prime is 328720267. The reversal of 328720248 is 842027823.

328720248 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760711 + ... + 761142.

Almost surely, 2328720248 is an apocalyptic number.

It is an amenable number.

328720248 is an abundant number, since it is smaller than the sum of its proper divisors (584392152).

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

328720248 is a wasteful number, since it uses less digits than its factorization.

328720248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521868 (or 1521858 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 328720248 is about 18130.6438936956. The cubic root of 328720248 is about 690.1478700099.

The spelling of 328720248 in words is "three hundred twenty-eight million, seven hundred twenty thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 1521853 3043706 4565559 6087412 9131118 12174824 13696677 18262236 27393354 36524472 41090031 54786708 82180062 109573416 164360124 328720248