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12652131 = 317214593
BaseRepresentation
bin110000010000…
…111001100011
3212210210110110
4300100321203
511214332011
61131102403
7212353452
oct60207143
925723413
1012652131
117161808
1242a1a03
13280ca8b
141974b99
15119dba6
hexc10e63

12652131 has 12 divisors (see below), whose sum is σ = 17921432. Its totient is φ = 7938048.

The previous prime is 12652109. The next prime is 12652147. The reversal of 12652131 is 13125621.

It is not a de Polignac number, because 12652131 - 25 = 12652099 is a prime.

It is a super-2 number, since 2×126521312 = 320152837682322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12652098 and 12652107.

It is not an unprimeable number, because it can be changed into a prime (12652331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6430 + ... + 8163.

Almost surely, 212652131 is an apocalyptic number.

12652131 is a deficient number, since it is larger than the sum of its proper divisors (5269301).

12652131 is a wasteful number, since it uses less digits than its factorization.

12652131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14630 (or 14613 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 12652131 is about 3556.9834129498. The cubic root of 12652131 is about 233.0171538391.

Adding to 12652131 its reverse (13125621), we get a palindrome (25777752).

The spelling of 12652131 in words is "twelve million, six hundred fifty-two thousand, one hundred thirty-one".

Divisors: 1 3 17 51 289 867 14593 43779 248081 744243 4217377 12652131