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12652117 = 28014517
BaseRepresentation
bin110000010000…
…111001010101
3212210210102221
4300100321111
511214331432
61131102341
7212353432
oct60207125
925723387
1012652117
1171617a5
1242a19b1
13280ca7a
141974b89
15119db97
hexc10e55

12652117 has 4 divisors (see below), whose sum is σ = 12659436. Its totient is φ = 12644800.

The previous prime is 12652109. The next prime is 12652147. The reversal of 12652117 is 71125621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2193361 + 10458756 = 1481^2 + 3234^2 .

It is a cyclic number.

It is not a de Polignac number, because 12652117 - 23 = 12652109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12652091 and 12652100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12652147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (3164859).

Almost surely, 212652117 is an apocalyptic number.

It is an amenable number.

12652117 is a deficient number, since it is larger than the sum of its proper divisors (7319).

12652117 is an equidigital number, since it uses as much as digits as its factorization.

12652117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7318.

The product of its digits is 840, while the sum is 25.

The square root of 12652117 is about 3556.9814449896. The cubic root of 12652117 is about 233.0170678920.

Adding to 12652117 its reverse (71125621), we get a palindrome (83777738).

It can be divided in two parts, 12652 and 117, that added together give a square (12769 = 1132).

The spelling of 12652117 in words is "twelve million, six hundred fifty-two thousand, one hundred seventeen".

Divisors: 1 2801 4517 12652117