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328807374 = 2377828747
BaseRepresentation
bin10011100110010…
…011001111001110
3211220201010220220
4103212103033032
51133133313444
652343252210
711101550040
oct2346231716
9756633826
10328807374
1115966a935
129214a066
1353175c9c
1431951a90
151dcee619
hex139933ce

328807374 has 16 divisors (see below), whose sum is σ = 751559808. Its totient is φ = 93944952.

The previous prime is 328807363. The next prime is 328807393. The reversal of 328807374 is 473708823.

It is a super-2 number, since 2×3288073742 = 216228578393551752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 7828747 = 328807374 / (3 + 2 + 8 + 8 + 0 + 7 + 3 + 7 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3914332 + ... + 3914415.

It is an arithmetic number, because the mean of its divisors is an integer number (46972488).

Almost surely, 2328807374 is an apocalyptic number.

328807374 is an abundant number, since it is smaller than the sum of its proper divisors (422752434).

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

328807374 is a wasteful number, since it uses less digits than its factorization.

328807374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7828759.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 328807374 is about 18133.0464621916. The cubic root of 328807374 is about 690.2088382770.

The spelling of 328807374 in words is "three hundred twenty-eight million, eight hundred seven thousand, three hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 7828747 15657494 23486241 46972482 54801229 109602458 164403687 328807374