Base | Representation |
---|---|
bin | 111101000011110011… |
… | …1111101111010010001 |
3 | 110112110021201201012221 |
4 | 1322013213331322101 |
5 | 4122020322421431 |
6 | 140123203221041 |
7 | 12321246116323 |
oct | 1720747757221 |
9 | 415407651187 |
10 | 131124420241 |
11 | 50678353761 |
12 | 214b5377781 |
13 | c498b25859 |
14 | 64bc963613 |
15 | 3626920111 |
hex | 1e879fde91 |
131124420241 has 4 divisors (see below), whose sum is σ = 131237168112. Its totient is φ = 131011672372.
The previous prime is 131124420239. The next prime is 131124420269. The reversal of 131124420241 is 142024421131.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 131124420241 - 21 = 131124420239 is a prime.
It is a super-2 number, since 2×1311244202412 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131124420221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56372191 + ... + 56374516.
It is an arithmetic number, because the mean of its divisors is an integer number (32809292028).
Almost surely, 2131124420241 is an apocalyptic number.
It is an amenable number.
131124420241 is a deficient number, since it is larger than the sum of its proper divisors (112747871).
131124420241 is a wasteful number, since it uses less digits than its factorization.
131124420241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 112747870.
The product of its (nonzero) digits is 1536, while the sum is 25.
Adding to 131124420241 its reverse (142024421131), we get a palindrome (273148841372).
The spelling of 131124420241 in words is "one hundred thirty-one billion, one hundred twenty-four million, four hundred twenty thousand, two hundred forty-one".
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