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13205322617 = 472803100237
BaseRepresentation
bin11000100110001100…
…10011101101111001
31021002022010220010212
430103012103231321
5204021030310432
610022203520505
7645145250564
oct142306235571
937068126125
1013205322617
115667073373
122686529135
131325aa0886
148d3b354db
155244ad2b2
hex313193b79

13205322617 has 8 divisors (see below), whose sum is σ = 13491232896. Its totient is φ = 12919618512.

The previous prime is 13205322553. The next prime is 13205322629. The reversal of 13205322617 is 71622350231.

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

It is a cyclic number.

It is not a de Polignac number, because 13205322617 - 26 = 13205322553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13205321617) 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, 81623 + ... + 181859.

It is an arithmetic number, because the mean of its divisors is an integer number (1686404112).

Almost surely, 213205322617 is an apocalyptic number.

It is an amenable number.

13205322617 is a deficient number, since it is larger than the sum of its proper divisors (285910279).

13205322617 is a wasteful number, since it uses less digits than its factorization.

13205322617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103087.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 13205322617 its reverse (71622350231), we get a palindrome (84827672848).

The spelling of 13205322617 in words is "thirteen billion, two hundred five million, three hundred twenty-two thousand, six hundred seventeen".

Divisors: 1 47 2803 100237 131741 4711139 280964311 13205322617