Base | Representation |
---|---|
bin | 111101001100101110… |
… | …0001110000000011011 |
3 | 110120020010011220210000 |
4 | 1322121130032000123 |
5 | 4123123333032311 |
6 | 140213002024043 |
7 | 12331535606316 |
oct | 1723134160033 |
9 | 416203156700 |
10 | 131423330331 |
11 | 50811053297 |
12 | 215794a8023 |
13 | c515a31527 |
14 | 650a53197d |
15 | 3642cb6056 |
hex | 1e9970e01b |
131423330331 has 40 divisors (see below), whose sum is σ = 197822512800. Its totient is φ = 86947862400.
The previous prime is 131423330293. The next prime is 131423330341. The reversal of 131423330331 is 133033324131.
It is not a de Polignac number, because 131423330331 - 214 = 131423313947 is a prime.
It is a super-2 number, since 2×1314233303312 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 131423330295 and 131423330304.
It is not an unprimeable number, because it can be changed into a prime (131423330341) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13559335 + ... + 13569023.
It is an arithmetic number, because the mean of its divisors is an integer number (4945562820).
Almost surely, 2131423330331 is an apocalyptic number.
131423330331 is a deficient number, since it is larger than the sum of its proper divisors (66399182469).
131423330331 is a wasteful number, since it uses less digits than its factorization.
131423330331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10961 (or 10952 counting only the distinct ones).
The product of its (nonzero) digits is 5832, while the sum is 27.
Adding to 131423330331 its reverse (133033324131), we get a palindrome (264456654462).
The spelling of 131423330331 in words is "one hundred thirty-one billion, four hundred twenty-three million, three hundred thirty thousand, three hundred thirty-one".
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