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328208238 = 23247387953
BaseRepresentation
bin10011100100000…
…000111101101110
3211212120201001200
4103210000331232
51133010130423
652322350330
711063503221
oct2344007556
9755521050
10328208238
111592a0786
1291abb3a6
1352cc6377
14318375b8
151dc31d43
hex13900f6e

328208238 has 24 divisors (see below), whose sum is σ = 726249888. Its totient is φ = 107074752.

The previous prime is 328208213. The next prime is 328208267. The reversal of 328208238 is 832802823.

328208238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193131 + ... + 194822.

It is an arithmetic number, because the mean of its divisors is an integer number (30260412).

Almost surely, 2328208238 is an apocalyptic number.

328208238 is an abundant number, since it is smaller than the sum of its proper divisors (398041650).

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

328208238 is a wasteful number, since it uses less digits than its factorization.

328208238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388008 (or 388005 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 328208238 is about 18116.5183741248. The cubic root of 328208238 is about 689.7893622958.

The spelling of 328208238 in words is "three hundred twenty-eight million, two hundred eight thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 47 94 141 282 423 846 387953 775906 1163859 2327718 3491577 6983154 18233791 36467582 54701373 109402746 164104119 328208238