Base | Representation |
---|---|
bin | 111101000000110000… |
… | …1010011011111001001 |
3 | 110112012011000202012122 |
4 | 1322001201103133021 |
5 | 4121313113312223 |
6 | 140105104221025 |
7 | 12315563466155 |
oct | 1720141233711 |
9 | 415164022178 |
10 | 131022010313 |
11 | 50625566657 |
12 | 2148700a775 |
13 | c48084a16c |
14 | 64ad106065 |
15 | 361c9415c8 |
hex | 1e818537c9 |
131022010313 has 4 divisors (see below), whose sum is σ = 131024583060. Its totient is φ = 131019437568.
The previous prime is 131022010279. The next prime is 131022010333. The reversal of 131022010313 is 313010220131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313010220131 = 7 ⋅44715745733.
It can be written as a sum of positive squares in 2 ways, for example, as 83806197049 + 47215813264 = 289493^2 + 217292^2 .
It is a cyclic number.
It is not a de Polignac number, because 131022010313 - 224 = 131005233097 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 131022010291 and 131022010300.
It is not an unprimeable number, because it can be changed into a prime (131022010333) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1208408 + ... + 1312361.
It is an arithmetic number, because the mean of its divisors is an integer number (32756145765).
Almost surely, 2131022010313 is an apocalyptic number.
It is an amenable number.
131022010313 is a deficient number, since it is larger than the sum of its proper divisors (2572747).
131022010313 is an equidigital number, since it uses as much as digits as its factorization.
131022010313 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2572746.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 131022010313 its reverse (313010220131), we get a palindrome (444032230444).
The spelling of 131022010313 in words is "one hundred thirty-one billion, twenty-two million, ten thousand, three hundred thirteen".
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