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12680586452 = 223170146613
BaseRepresentation
bin10111100111101001…
…00110010011010100
31012201201202112110002
423303310212103110
5201432212231302
65454140550432
7626144130542
oct136364462324
935651675402
1012680586452
115417951316
12255a852418
1312711676c1
14884180d92
154e33aac02
hex2f3d264d4

12680586452 has 6 divisors (see below), whose sum is σ = 22191026298. Its totient is φ = 6340293224.

The previous prime is 12680586421. The next prime is 12680586463. The reversal of 12680586452 is 25468508621.

It can be written as a sum of positive squares in only one way, i.e., 9132478096 + 3548108356 = 95564^2 + 59566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12680586397 and 12680586406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585073303 + ... + 1585073310.

It is an arithmetic number, because the mean of its divisors is an integer number (3698504383).

Almost surely, 212680586452 is an apocalyptic number.

It is an amenable number.

12680586452 is a deficient number, since it is larger than the sum of its proper divisors (9510439846).

12680586452 is a wasteful number, since it uses less digits than its factorization.

12680586452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170146617 (or 3170146615 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 12680586452 in words is "twelve billion, six hundred eighty million, five hundred eighty-six thousand, four hundred fifty-two".

Divisors: 1 2 4 3170146613 6340293226 12680586452