Base | Representation |
---|---|
bin | 1011110110100001000011… |
… | …0000110101001001011010 |
3 | 1201010202211120102000201110 |
4 | 2331220100300311021122 |
5 | 3202000410233341442 |
6 | 43414242310201150 |
7 | 2513321403335313 |
oct | 275502060651132 |
9 | 51122746360643 |
10 | 13031212012122 |
11 | 4174562504437 |
12 | 15656526531b6 |
13 | 736ab818c345 |
14 | 3309dd40960a |
15 | 178e898c069c |
hex | bda10c3525a |
13031212012122 has 64 divisors (see below), whose sum is σ = 27643647783168. Its totient is φ = 4081093632000.
The previous prime is 13031212012099. The next prime is 13031212012127. The reversal of 13031212012122 is 22121021213031.
It is not an unprimeable number, because it can be changed into a prime (13031212012127) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 548416722 + ... + 548440482.
It is an arithmetic number, because the mean of its divisors is an integer number (431931996612).
Almost surely, 213031212012122 is an apocalyptic number.
13031212012122 is an abundant number, since it is smaller than the sum of its proper divisors (14612435771046).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13031212012122 is a wasteful number, since it uses less digits than its factorization.
13031212012122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32935.
The product of its (nonzero) digits is 288, while the sum is 21.
Adding to 13031212012122 its reverse (22121021213031), we get a palindrome (35152233225153).
The spelling of 13031212012122 in words is "thirteen trillion, thirty-one billion, two hundred twelve million, twelve thousand, one hundred twenty-two".
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