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12630785 = 512719891
BaseRepresentation
bin110000001011…
…101100000001
3212202201011212
4300023230001
511213141120
61130415505
7212234306
oct60135401
925681155
1012630785
117147772
124291595
13280314b
14196b0ad
1511976c5
hexc0bb01

12630785 has 8 divisors (see below), whose sum is σ = 15277056. Its totient is φ = 10024560.

The previous prime is 12630769. The next prime is 12630799. The reversal of 12630785 is 58703621.

It is a happy number.

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

It is not a de Polignac number, because 12630785 - 24 = 12630769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9311 + ... + 10580.

It is an arithmetic number, because the mean of its divisors is an integer number (1909632).

Almost surely, 212630785 is an apocalyptic number.

It is an amenable number.

12630785 is a deficient number, since it is larger than the sum of its proper divisors (2646271).

12630785 is a wasteful number, since it uses less digits than its factorization.

12630785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20023.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 12630785 is about 3553.9815700141. The cubic root of 12630785 is about 232.8860353719.

The spelling of 12630785 in words is "twelve million, six hundred thirty thousand, seven hundred eighty-five".

Divisors: 1 5 127 635 19891 99455 2526157 12630785