Base | Representation |
---|---|
bin | 111101000000110101… |
… | …0100010010011110001 |
3 | 110112012022120200211120 |
4 | 1322001222202103301 |
5 | 4121314223232241 |
6 | 140105232132453 |
7 | 12315623165451 |
oct | 1720152422361 |
9 | 415168520746 |
10 | 131024430321 |
11 | 50626969864 |
12 | 21487997129 |
13 | c4811b6815 |
14 | 64ad575d61 |
15 | 361cc6d666 |
hex | 1e81aa24f1 |
131024430321 has 8 divisors (see below), whose sum is σ = 176032822944. Its totient is φ = 86682828960.
The previous prime is 131024430319. The next prime is 131024430323. The reversal of 131024430321 is 123034420131.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (131024430319) and next prime (131024430323).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131024430321 - 21 = 131024430319 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 131024430291 and 131024430300.
It is not an unprimeable number, because it can be changed into a prime (131024430323) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166697356 + ... + 166698141.
It is an arithmetic number, because the mean of its divisors is an integer number (22004102868).
Almost surely, 2131024430321 is an apocalyptic number.
It is an amenable number.
131024430321 is a deficient number, since it is larger than the sum of its proper divisors (45008392623).
131024430321 is a wasteful number, since it uses less digits than its factorization.
131024430321 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 333395631.
The product of its (nonzero) digits is 1728, while the sum is 24.
Adding to 131024430321 its reverse (123034420131), we get a palindrome (254058850452).
The spelling of 131024430321 in words is "one hundred thirty-one billion, twenty-four million, four hundred thirty thousand, three hundred twenty-one".
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