Base | Representation |
---|---|
bin | 11000011101010101… |
… | …11001111011001110 |
3 | 1020220010100110010200 |
4 | 30032222321323032 |
5 | 203343020431342 |
6 | 10010551314330 |
7 | 643253625642 |
oct | 141652717316 |
9 | 36803313120 |
10 | 13131030222 |
11 | 56291403a2 |
12 | 266567b9a6 |
13 | 131358b38b |
14 | 8c7d16c22 |
15 | 51cbd594c |
hex | 30eab9ece |
13131030222 has 24 divisors (see below), whose sum is σ = 28473725280. Its totient is φ = 4373447040.
The previous prime is 13131030193. The next prime is 13131030223. The reversal of 13131030222 is 22203013131.
13131030222 is a `hidden beast` number, since 1 + 31 + 310 + 302 + 22 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 13131030195 and 13131030204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13131030223) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274147 + ... + 318462.
It is an arithmetic number, because the mean of its divisors is an integer number (1186405220).
Almost surely, 213131030222 is an apocalyptic number.
13131030222 is an abundant number, since it is smaller than the sum of its proper divisors (15342695058).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13131030222 is a wasteful number, since it uses less digits than its factorization.
13131030222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 593848 (or 593845 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 13131030222 its reverse (22203013131), we get a palindrome (35334043353).
The spelling of 13131030222 in words is "thirteen billion, one hundred thirty-one million, thirty thousand, two hundred twenty-two".
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