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12713613 = 311385261
BaseRepresentation
bin110000011111…
…111010001101
3212220220210120
4300133322031
511223313423
61132255153
7213030633
oct60377215
925826716
1012713613
1171a3a20
1243114b9
132831a63
14198d353
1511b1ee3
hexc1fe8d

12713613 has 8 divisors (see below), whose sum is σ = 18492576. Its totient is φ = 7705200.

The previous prime is 12713611. The next prime is 12713639. The reversal of 12713613 is 31631721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12713613 - 21 = 12713611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12713611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192598 + ... + 192663.

It is an arithmetic number, because the mean of its divisors is an integer number (2311572).

Almost surely, 212713613 is an apocalyptic number.

It is an amenable number.

12713613 is a deficient number, since it is larger than the sum of its proper divisors (5778963).

12713613 is a wasteful number, since it uses less digits than its factorization.

12713613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385275.

The product of its digits is 756, while the sum is 24.

The square root of 12713613 is about 3565.6153746583. The cubic root of 12713613 is about 233.3939867265.

It can be divided in two parts, 1271 and 3613, that added together give a palindrome (4884).

The spelling of 12713613 in words is "twelve million, seven hundred thirteen thousand, six hundred thirteen".

Divisors: 1 3 11 33 385261 1155783 4237871 12713613