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12606377 = 72257273
BaseRepresentation
bin110000000101…
…101110101001
3212201110200212
4300011232221
511211401002
61130110505
7212103200
oct60055651
925643625
1012606377
1171303a3
12427b435
1327c4cc4
141962237
151190352
hexc05ba9

12606377 has 6 divisors (see below), whose sum is σ = 14664618. Its totient is φ = 10805424.

The previous prime is 12606361. The next prime is 12606383. The reversal of 12606377 is 77360621.

It can be written as a sum of positive squares in only one way, i.e., 7958041 + 4648336 = 2821^2 + 2156^2 .

It is not a de Polignac number, because 12606377 - 24 = 12606361 is a prime.

It is a super-2 number, since 2×126063772 = 317841482132258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12606317) 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 5 ways as a sum of consecutive naturals, for example, 128588 + ... + 128685.

It is an arithmetic number, because the mean of its divisors is an integer number (2444103).

Almost surely, 212606377 is an apocalyptic number.

It is an amenable number.

12606377 is a deficient number, since it is larger than the sum of its proper divisors (2058241).

12606377 is an equidigital number, since it uses as much as digits as its factorization.

12606377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257287 (or 257280 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 12606377 is about 3550.5460143477. The cubic root of 12606377 is about 232.7359273154.

Adding to 12606377 its reverse (77360621), we get a palindrome (89966998).

The spelling of 12606377 in words is "twelve million, six hundred six thousand, three hundred seventy-seven".

Divisors: 1 7 49 257273 1800911 12606377