Base | Representation |
---|---|
bin | 11101110101011000111010… |
… | …100011100110001111110111 |
3 | 122012120202201010211120200201 |
4 | 131311120322203212033313 |
5 | 114144240123211144111 |
6 | 1143022022352421331 |
7 | 36431525313602146 |
oct | 3565307243461767 |
9 | 565522633746621 |
10 | 131212233303031 |
11 | 38898883004a11 |
12 | 12871987547847 |
13 | 582a35044c22a |
14 | 24589c52b575d |
15 | 10281e823b6c1 |
hex | 77563a8e63f7 |
131212233303031 has 8 divisors (see below), whose sum is σ = 141330190094720. Its totient is φ = 121415481488952.
The previous prime is 131212233303029. The next prime is 131212233303049. The reversal of 131212233303031 is 130303332212131.
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 131212233303031 - 21 = 131212233303029 is a prime.
It is a super-2 number, since 2×1312122333030312 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131212233303331) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80301243555 + ... + 80301245188.
It is an arithmetic number, because the mean of its divisors is an integer number (17666273761840).
Almost surely, 2131212233303031 is an apocalyptic number.
131212233303031 is a deficient number, since it is larger than the sum of its proper divisors (10117956791689).
131212233303031 is a wasteful number, since it uses less digits than its factorization.
131212233303031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 160602488805.
The product of its (nonzero) digits is 5832, while the sum is 28.
Adding to 131212233303031 its reverse (130303332212131), we get a palindrome (261515565515162).
The spelling of 131212233303031 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred thirty-three million, three hundred three thousand, thirty-one".
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