Base | Representation |
---|---|
bin | 111101001100000011… |
… | …1110101110011100001 |
3 | 110120011120120010220102 |
4 | 1322120013311303201 |
5 | 4123102202223410 |
6 | 140210451552145 |
7 | 12331146602633 |
oct | 1723007656341 |
9 | 416146503812 |
10 | 131401211105 |
11 | 507aa61583a |
12 | 21571bbb655 |
13 | c511288628 |
14 | 6507614a53 |
15 | 3640d972a5 |
hex | 1e981f5ce1 |
131401211105 has 32 divisors (see below), whose sum is σ = 171018466560. Its totient is φ = 96622606080.
The previous prime is 131401211099. The next prime is 131401211107. The reversal of 131401211105 is 501112104131.
It is not a de Polignac number, because 131401211105 - 26 = 131401211041 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131401211107) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 610319 + ... + 797051.
It is an arithmetic number, because the mean of its divisors is an integer number (5344327080).
Almost surely, 2131401211105 is an apocalyptic number.
It is an amenable number.
131401211105 is a deficient number, since it is larger than the sum of its proper divisors (39617255455).
131401211105 is a wasteful number, since it uses less digits than its factorization.
131401211105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 187001.
The product of its (nonzero) digits is 120, while the sum is 20.
Adding to 131401211105 its reverse (501112104131), we get a palindrome (632513315236).
The spelling of 131401211105 in words is "one hundred thirty-one billion, four hundred one million, two hundred eleven thousand, one hundred five".
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