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20676468 = 2236725717
BaseRepresentation
bin100111011011…
…1111101110100
31102220110210010
41032313331310
520243121333
62015100220
7340514151
oct116677564
942813703
1020676468
111074259a
126b11670
13438c2c7
142a63228
151c36563
hex13b7f74

20676468 has 24 divisors (see below), whose sum is σ = 48967072. Its totient is φ = 6789024.

The previous prime is 20676463. The next prime is 20676493. The reversal of 20676468 is 86467602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20676463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12055 + ... + 13662.

Almost surely, 220676468 is an apocalyptic number.

It is an amenable number.

20676468 is an abundant number, since it is smaller than the sum of its proper divisors (28290604).

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

20676468 is a wasteful number, since it uses less digits than its factorization.

20676468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25791 (or 25789 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 20676468 is about 4547.1384408219. The cubic root of 20676468 is about 274.4682529036.

The spelling of 20676468 in words is "twenty million, six hundred seventy-six thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 67 134 201 268 402 804 25717 51434 77151 102868 154302 308604 1723039 3446078 5169117 6892156 10338234 20676468