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12425013 = 321380557
BaseRepresentation
bin101111011001…
…011100110101
3212101020220200
4233121130311
511140100023
61122151113
7210416346
oct57313465
925336820
1012425013
117017107
1241b2499
1327605a3
1419160cd
151156743
hexbd9735

12425013 has 6 divisors (see below), whose sum is σ = 17947254. Its totient is φ = 8283336.

The previous prime is 12424969. The next prime is 12425027. The reversal of 12425013 is 31052421.

12425013 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in only one way, i.e., 11985444 + 439569 = 3462^2 + 663^2 .

It is not a de Polignac number, because 12425013 - 212 = 12420917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12425053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 690270 + ... + 690287.

It is an arithmetic number, because the mean of its divisors is an integer number (2991209).

Almost surely, 212425013 is an apocalyptic number.

It is an amenable number.

12425013 is a deficient number, since it is larger than the sum of its proper divisors (5522241).

12425013 is a wasteful number, since it uses less digits than its factorization.

12425013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380563 (or 1380560 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12425013 is about 3524.9131904204. The cubic root of 12425013 is about 231.6144321503.

Adding to 12425013 its reverse (31052421), we get a palindrome (43477434).

The spelling of 12425013 in words is "twelve million, four hundred twenty-five thousand, thirteen".

Divisors: 1 3 9 1380557 4141671 12425013