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20330727 = 313015209
BaseRepresentation
bin100110110001…
…1100011100111
31102020220111220
41031203203213
520201040402
62003431423
7334544154
oct115434347
942226456
1020330727
111052685a
126985573
13429ab21
1429b322b
151bb8dbc
hex13638e7

20330727 has 8 divisors (see below), whose sum is σ = 27133680. Its totient is φ = 13540800.

The previous prime is 20330693. The next prime is 20330731. The reversal of 20330727 is 72703302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20330727 - 218 = 20068583 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 20330697 and 20330706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299 + ... + 6507.

It is an arithmetic number, because the mean of its divisors is an integer number (3391710).

Almost surely, 220330727 is an apocalyptic number.

20330727 is a deficient number, since it is larger than the sum of its proper divisors (6802953).

20330727 is a wasteful number, since it uses less digits than its factorization.

20330727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 20330727 is about 4508.9607450054. The cubic root of 20330727 is about 272.9298079280.

The spelling of 20330727 in words is "twenty million, three hundred thirty thousand, seven hundred twenty-seven".

Divisors: 1 3 1301 3903 5209 15627 6776909 20330727