Base | Representation |
---|---|
bin | 111101001101010010… |
… | …0010001110110001110 |
3 | 110120021102201122010022 |
4 | 1322122210101312032 |
5 | 4123143202023210 |
6 | 140214514542142 |
7 | 12332155303433 |
oct | 1723244216616 |
9 | 416242648108 |
10 | 131442220430 |
11 | 50820785744 |
12 | 21583897952 |
13 | c5199166c1 |
14 | 650cc4bb8a |
15 | 3644798155 |
hex | 1e9a911d8e |
131442220430 has 64 divisors (see below), whose sum is σ = 240812587008. Its totient is φ = 51648192000.
The previous prime is 131442220373. The next prime is 131442220477. The reversal of 131442220430 is 34022244131.
131442220430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a self number, because there is not a number n which added to its sum of digits gives 131442220430.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175022555 + ... + 175023305.
It is an arithmetic number, because the mean of its divisors is an integer number (3762696672).
Almost surely, 2131442220430 is an apocalyptic number.
131442220430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131442220430 is a deficient number, since it is larger than the sum of its proper divisors (109370366578).
131442220430 is a wasteful number, since it uses less digits than its factorization.
131442220430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1761.
The product of its (nonzero) digits is 4608, while the sum is 26.
Adding to 131442220430 its reverse (34022244131), we get a palindrome (165464464561).
The spelling of 131442220430 in words is "one hundred thirty-one billion, four hundred forty-two million, two hundred twenty thousand, four hundred thirty".
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