Base | Representation |
---|---|
bin | 1111101000111… |
… | …11110010101110 |
3 | 100010212202121120 |
4 | 13310133302232 |
5 | 232041432342 |
6 | 21004041410 |
7 | 3152125524 |
oct | 764376256 |
9 | 303782546 |
10 | 131202222 |
11 | 68073198 |
12 | 37b33266 |
13 | 21249a68 |
14 | 135d4314 |
15 | b7b9aec |
hex | 7d1fcae |
131202222 has 24 divisors (see below), whose sum is σ = 269705016. Its totient is φ = 42549408.
The previous prime is 131202187. The next prime is 131202263. The reversal of 131202222 is 222202131.
It is a happy number.
131202222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228 + ... + 16200.
It is an arithmetic number, because the mean of its divisors is an integer number (11237709).
Almost surely, 2131202222 is an apocalyptic number.
131202222 is an abundant number, since it is smaller than the sum of its proper divisors (138502794).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131202222 is a wasteful number, since it uses less digits than its factorization.
131202222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16052 (or 16015 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 131202222 is about 11454.3538447177. The cubic root of 131202222 is about 508.1365056724.
Adding to 131202222 its reverse (222202131), we get a palindrome (353404353).
Subtracting 131202222 from its reverse (222202131), we obtain a palindrome (90999909).
The spelling of 131202222 in words is "one hundred thirty-one million, two hundred two thousand, two hundred twenty-two".
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