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12852985 = 59726501
BaseRepresentation
bin110001000001…
…111011111001
3220011222222111
4301001323321
511242243420
61135252321
7214151155
oct61017371
926158874
1012852985
117289702
12437a0a1
132880322
1419c8065
1511dd45a
hexc41ef9

12852985 has 8 divisors (see below), whose sum is σ = 15583176. Its totient is φ = 10176000.

The previous prime is 12852971. The next prime is 12852997. The reversal of 12852985 is 58925821.

It can be written as a sum of positive squares in 4 ways, for example, as 595984 + 12257001 = 772^2 + 3501^2 .

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

It is not a de Polignac number, because 12852985 - 29 = 12852473 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12766 + ... + 13735.

It is an arithmetic number, because the mean of its divisors is an integer number (1947897).

Almost surely, 212852985 is an apocalyptic number.

It is an amenable number.

12852985 is a deficient number, since it is larger than the sum of its proper divisors (2730191).

12852985 is an equidigital number, since it uses as much as digits as its factorization.

12852985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26603.

The product of its digits is 57600, while the sum is 40.

The square root of 12852985 is about 3585.1059956436. The cubic root of 12852985 is about 234.2437436325.

The spelling of 12852985 in words is "twelve million, eight hundred fifty-two thousand, nine hundred eighty-five".

Divisors: 1 5 97 485 26501 132505 2570597 12852985