Base | Representation |
---|---|
bin | 11000100111111101… |
… | …10000111001110110 |
3 | 1021010022222210101200 |
4 | 30103332300321312 |
5 | 204033322402410 |
6 | 10023453033330 |
7 | 645415120260 |
oct | 142376607166 |
9 | 37108883350 |
10 | 13220122230 |
11 | 5674461557 |
12 | 268b485846 |
13 | 1328b82c43 |
14 | 8d5aa8b30 |
15 | 5259333c0 |
hex | 313fb0e76 |
13220122230 has 48 divisors (see below), whose sum is σ = 39282650784. Its totient is φ = 3021742080.
The previous prime is 13220122187. The next prime is 13220122247. The reversal of 13220122230 is 3222102231.
It is a super-2 number, since 2×132201222302 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10491531 + ... + 10492790.
It is an arithmetic number, because the mean of its divisors is an integer number (818388558).
Almost surely, 213220122230 is an apocalyptic number.
13220122230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13220122230 is an abundant number, since it is smaller than the sum of its proper divisors (26062528554).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13220122230 is a wasteful number, since it uses less digits than its factorization.
13220122230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20984341 (or 20984338 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 13220122230 its reverse (3222102231), we get a palindrome (16442224461).
The spelling of 13220122230 in words is "thirteen billion, two hundred twenty million, one hundred twenty-two thousand, two hundred thirty".
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