Base | Representation |
---|---|
bin | 111101000110011001… |
… | …1000111110001011101 |
3 | 110112200100002010020100 |
4 | 1322030303013301131 |
5 | 4122210033332201 |
6 | 140135544011313 |
7 | 12323352025014 |
oct | 1721463076135 |
9 | 415610063210 |
10 | 131211230301 |
11 | 50712356408 |
12 | 2151a460b39 |
13 | c4b0acb858 |
14 | 64ca2bda7b |
15 | 362e36b886 |
hex | 1e8ccc7c5d |
131211230301 has 12 divisors (see below), whose sum is σ = 190125214812. Its totient is φ = 87198207936.
The previous prime is 131211230291. The next prime is 131211230327. The reversal of 131211230301 is 103032112131.
131211230301 is a `hidden beast` number, since 13 + 121 + 1 + 230 + 301 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 36438992100 + 94772238201 = 190890^2 + 307851^2 .
It is not a de Polignac number, because 131211230301 - 27 = 131211230173 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131211230201) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22992456 + ... + 22998161.
It is an arithmetic number, because the mean of its divisors is an integer number (15843767901).
Almost surely, 2131211230301 is an apocalyptic number.
It is an amenable number.
131211230301 is a deficient number, since it is larger than the sum of its proper divisors (58913984511).
131211230301 is a wasteful number, since it uses less digits than its factorization.
131211230301 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45990940 (or 45990937 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 131211230301 its reverse (103032112131), we get a palindrome (234243342432).
The spelling of 131211230301 in words is "one hundred thirty-one billion, two hundred eleven million, two hundred thirty thousand, three hundred one".
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