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12630227 = 13739199
BaseRepresentation
bin110000001011…
…100011010011
3212202200102012
4300023203103
511213131402
61130413135
7212232551
oct60134323
925680365
1012630227
117147305
1242911ab
132802b0c
14196abd1
151197452
hexc0b8d3

12630227 has 4 divisors (see below), whose sum is σ = 12640800. Its totient is φ = 12619656.

The previous prime is 12630221. The next prime is 12630229. The reversal of 12630227 is 72203621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12630227 - 28 = 12629971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12630221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3227 + ... + 5972.

It is an arithmetic number, because the mean of its divisors is an integer number (3160200).

Almost surely, 212630227 is an apocalyptic number.

12630227 is a deficient number, since it is larger than the sum of its proper divisors (10573).

12630227 is an equidigital number, since it uses as much as digits as its factorization.

12630227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10572.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 12630227 is about 3553.9030656449. The cubic root of 12630227 is about 232.8826058590.

Adding to 12630227 its reverse (72203621), we get a palindrome (84833848).

The spelling of 12630227 in words is "twelve million, six hundred thirty thousand, two hundred twenty-seven".

Divisors: 1 1373 9199 12630227