Base | Representation |
---|---|
bin | 111101001100101100… |
… | …0011001111000100101 |
3 | 110120020001022010010201 |
4 | 1322121120121320211 |
5 | 4123123104033110 |
6 | 140212524350501 |
7 | 12331524243142 |
oct | 1723130317045 |
9 | 416201263121 |
10 | 131422330405 |
11 | 50810530003 |
12 | 215790a5431 |
13 | c515771362 |
14 | 650a3513c9 |
15 | 3642b69b3a |
hex | 1e99619e25 |
131422330405 has 8 divisors (see below), whose sum is σ = 157889544192. Its totient is φ = 105016032528.
The previous prime is 131422330379. The next prime is 131422330427. The reversal of 131422330405 is 504033224131.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131422330405 - 223 = 131413941797 is a prime.
It is a Duffinian number.
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 7 ways as a sum of consecutive naturals, for example, 15224229 + ... + 15232858.
It is an arithmetic number, because the mean of its divisors is an integer number (19736193024).
Almost surely, 2131422330405 is an apocalyptic number.
It is an amenable number.
131422330405 is a deficient number, since it is larger than the sum of its proper divisors (26467213787).
131422330405 is an equidigital number, since it uses as much as digits as its factorization.
131422330405 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30457955.
The product of its (nonzero) digits is 8640, while the sum is 28.
Adding to 131422330405 its reverse (504033224131), we get a palindrome (635455554536).
The spelling of 131422330405 in words is "one hundred thirty-one billion, four hundred twenty-two million, three hundred thirty thousand, four hundred five".
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