Base | Representation |
---|---|
bin | 111101000011111111… |
… | …0011001101010110111 |
3 | 110112110200210111020221 |
4 | 1322013332121222313 |
5 | 4122023324113421 |
6 | 140123533235211 |
7 | 12321350111605 |
oct | 1720776315267 |
9 | 415420714227 |
10 | 131130301111 |
11 | 50680700087 |
12 | 214b7332b07 |
13 | c49a104564 |
14 | 64bd654875 |
15 | 36271d2841 |
hex | 1e87f99ab7 |
131130301111 has 4 divisors (see below), whose sum is σ = 131135509224. Its totient is φ = 131125093000.
The previous prime is 131130301073. The next prime is 131130301117. The reversal of 131130301111 is 111103031131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111103031131 = 166739 ⋅666329.
It is a cyclic number.
It is not a de Polignac number, because 131130301111 - 215 = 131130268343 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131130301117) 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, 2566105 + ... + 2616706.
It is an arithmetic number, because the mean of its divisors is an integer number (32783877306).
Almost surely, 2131130301111 is an apocalyptic number.
131130301111 is a deficient number, since it is larger than the sum of its proper divisors (5208113).
131130301111 is an equidigital number, since it uses as much as digits as its factorization.
131130301111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5208112.
The product of its (nonzero) digits is 27, while the sum is 16.
Adding to 131130301111 its reverse (111103031131), we get a palindrome (242233332242).
The spelling of 131130301111 in words is "one hundred thirty-one billion, one hundred thirty million, three hundred one thousand, one hundred eleven".
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