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13213045345 = 523627111847
BaseRepresentation
bin11000100111000111…
…10001001001100001
31021002211200020201211
430103203301021201
5204030014422340
610023041230121
7645301014043
oct142343611141
937084606654
1013213045345
115670468595
122689032341
131327575a36
148d4b85a93
15524ed65ea
hex3138f1261

13213045345 has 8 divisors (see below), whose sum is σ = 15856467264. Its totient is φ = 10569894384.

The previous prime is 13213045343. The next prime is 13213045367. The reversal of 13213045345 is 54354031231.

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 13213045345 - 21 = 13213045343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213045343) 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, 62212 + ... + 174058.

It is an arithmetic number, because the mean of its divisors is an integer number (1982058408).

Almost surely, 213213045345 is an apocalyptic number.

It is an amenable number.

13213045345 is a deficient number, since it is larger than the sum of its proper divisors (2643421919).

13213045345 is a wasteful number, since it uses less digits than its factorization.

13213045345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135479.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 13213045345 its reverse (54354031231), we get a palindrome (67567076576).

The spelling of 13213045345 in words is "thirteen billion, two hundred thirteen million, forty-five thousand, three hundred forty-five".

Divisors: 1 5 23627 111847 118135 559235 2642609069 13213045345