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328630887 = 32132808811
BaseRepresentation
bin10011100101101…
…000001001100111
3211220101011211100
4103211220021213
51133112142022
652335411143
711100213354
oct2345501147
9756334740
10328630887
1115955a282
1292083ab3
1353113860
143190762b
151dcb71ac
hex13968267

328630887 has 12 divisors (see below), whose sum is σ = 511203784. Its totient is φ = 202234320.

The previous prime is 328630879. The next prime is 328630891. The reversal of 328630887 is 788036823.

328630887 is a `hidden beast` number, since 3 + 2 + 8 + 630 + 8 + 8 + 7 = 666.

It is not a de Polignac number, because 328630887 - 23 = 328630879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328630807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1404289 + ... + 1404522.

Almost surely, 2328630887 is an apocalyptic number.

328630887 is a deficient number, since it is larger than the sum of its proper divisors (182572897).

328630887 is a wasteful number, since it uses less digits than its factorization.

328630887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808830 (or 2808827 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 328630887 is about 18128.1793625284. The cubic root of 328630887 is about 690.0853265620.

The spelling of 328630887 in words is "three hundred twenty-eight million, six hundred thirty thousand, eight hundred eighty-seven".

Divisors: 1 3 9 13 39 117 2808811 8426433 25279299 36514543 109543629 328630887