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328069760 = 275512609
BaseRepresentation
bin10011100011011…
…111001010000000
3211212022200002212
4103203133022000
51132441213020
652315401252
711062355414
oct2343371200
9755280085
10328069760
11159206737
1291a53228
1352c78325
14317dcd44
151dc05cc5
hex138df280

328069760 has 32 divisors (see below), whose sum is σ = 784293300. Its totient is φ = 131227648.

The previous prime is 328069759. The next prime is 328069783. The reversal of 328069760 is 67960823.

It can be written as a sum of positive squares in 2 ways, for example, as 326019136 + 2050624 = 18056^2 + 1432^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 255665 + ... + 256944.

Almost surely, 2328069760 is an apocalyptic number.

It is an amenable number.

328069760 is an abundant number, since it is smaller than the sum of its proper divisors (456223540).

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

328069760 is an equidigital number, since it uses as much as digits as its factorization.

328069760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512628 (or 512616 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 328069760 is about 18112.6960996976. The cubic root of 328069760 is about 689.6923364065.

The spelling of 328069760 in words is "three hundred twenty-eight million, sixty-nine thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 512609 1025218 2050436 2563045 4100872 5126090 8201744 10252180 16403488 20504360 32806976 41008720 65613952 82017440 164034880 328069760