Base | Representation |
---|---|
bin | 11000100101110100… |
… | …11111010001011100 |
3 | 1021002002022110221102 |
4 | 30102322133101130 |
5 | 204014232133340 |
6 | 10022013252232 |
7 | 645110024423 |
oct | 142272372134 |
9 | 37062273842 |
10 | 13202224220 |
11 | 5665347509 |
12 | 2685494078 |
13 | 13252574c3 |
14 | 8d356a2ba |
15 | 52409a215 |
hex | 312e9f45c |
13202224220 has 24 divisors (see below), whose sum is σ = 28115162208. Its totient is φ = 5206510400.
The previous prime is 13202224199. The next prime is 13202224223. The reversal of 13202224220 is 2242220231.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 13202224192 and 13202224201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13202224223) 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, 4647251 + ... + 4650090.
It is an arithmetic number, because the mean of its divisors is an integer number (1171465092).
Almost surely, 213202224220 is an apocalyptic number.
13202224220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13202224220 is an abundant number, since it is smaller than the sum of its proper divisors (14912937988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13202224220 is a wasteful number, since it uses less digits than its factorization.
13202224220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9297421 (or 9297419 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 20.
Adding to 13202224220 its reverse (2242220231), we get a palindrome (15444444451).
The spelling of 13202224220 in words is "thirteen billion, two hundred two million, two hundred twenty-four thousand, two hundred twenty".
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