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12820063 = 432811061
BaseRepresentation
bin110000111001…
…111001011111
3220010022211011
4300321321133
511240220223
61134440051
7213653164
oct60717137
926108734
1012820063
1172669a3
124363027
13286b349
1419ba06b
1511d380d
hexc39e5f

12820063 has 8 divisors (see below), whose sum is σ = 13177296. Its totient is φ = 12465600.

The previous prime is 12820061. The next prime is 12820099. The reversal of 12820063 is 36002821.

12820063 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12820063 - 21 = 12820061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12820061) 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, 11553 + ... + 12613.

It is an arithmetic number, because the mean of its divisors is an integer number (1647162).

Almost surely, 212820063 is an apocalyptic number.

12820063 is a deficient number, since it is larger than the sum of its proper divisors (357233).

12820063 is a wasteful number, since it uses less digits than its factorization.

12820063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12820063 is about 3580.5115556300. The cubic root of 12820063 is about 234.0435731067.

Adding to 12820063 its reverse (36002821), we get a palindrome (48822884).

The spelling of 12820063 in words is "twelve million, eight hundred twenty thousand, sixty-three".

Divisors: 1 43 281 1061 12083 45623 298141 12820063