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20606328 = 2332286199
BaseRepresentation
bin100111010011…
…0110101111000
31102202220120100
41032212311320
520233400303
62013355400
7340102521
oct116466570
942686510
1020606328
11106a4926
126a98b60
1343663c2
142a45848
151c208a3
hex13a6d78

20606328 has 24 divisors (see below), whose sum is σ = 55809000. Its totient is φ = 6868752.

The previous prime is 20606309. The next prime is 20606357. The reversal of 20606328 is 82360602.

20606328 is a `hidden beast` number, since 20 + 6 + 0 + 632 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143028 + ... + 143171.

It is an arithmetic number, because the mean of its divisors is an integer number (2325375).

Almost surely, 220606328 is an apocalyptic number.

It is an amenable number.

20606328 is an abundant number, since it is smaller than the sum of its proper divisors (35202672).

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

20606328 is a wasteful number, since it uses less digits than its factorization.

20606328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286211 (or 286204 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20606328 is about 4539.4193461279. The cubic root of 20606328 is about 274.1575452148.

The spelling of 20606328 in words is "twenty million, six hundred six thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 286199 572398 858597 1144796 1717194 2289592 2575791 3434388 5151582 6868776 10303164 20606328