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13201320122 = 279163512593
BaseRepresentation
bin11000100101101110…
…00010100010111010
31021002000121112202022
430102313002202322
5204014014220442
610021542034442
7645066240524
oct142267024272
937060545668
1013201320122
11566488a221
122685118a22
131324ccbb33
148d33b2a14
15523e6c3d2
hex312dc28ba

13201320122 has 16 divisors (see below), whose sum is σ = 20175699840. Its totient is φ = 6477112512.

The previous prime is 13201320031. The next prime is 13201320127. The reversal of 13201320122 is 22102310231.

It is a self number, because there is not a number n which added to its sum of digits gives 13201320122.

It is not an unprimeable number, because it can be changed into a prime (13201320127) 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, 230543 + ... + 282050.

It is an arithmetic number, because the mean of its divisors is an integer number (1260981240).

Almost surely, 213201320122 is an apocalyptic number.

13201320122 is a deficient number, since it is larger than the sum of its proper divisors (6974379718).

13201320122 is a wasteful number, since it uses less digits than its factorization.

13201320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512837.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13201320122 its reverse (22102310231), we get a palindrome (35303630353).

The spelling of 13201320122 in words is "thirteen billion, two hundred one million, three hundred twenty thousand, one hundred twenty-two".

Divisors: 1 2 79 158 163 326 12877 25754 512593 1025186 40494847 80989694 83552659 167105318 6600660061 13201320122