Base | Representation |
---|---|
bin | 111100101111001001… |
… | …1111110001000100111 |
3 | 110110122222112012001000 |
4 | 1321132103332020213 |
5 | 4114110403444143 |
6 | 135530323404343 |
7 | 12265131601656 |
oct | 1713623761047 |
9 | 413588465030 |
10 | 130431312423 |
11 | 50352091585 |
12 | 213412236b3 |
13 | c3b835a599 |
14 | 64548a119d |
15 | 35d5b5ebd3 |
hex | 1e5e4fe227 |
130431312423 has 16 divisors (see below), whose sum is σ = 203401657600. Its totient is φ = 82377670680.
The previous prime is 130431312419. The next prime is 130431312509. The reversal of 130431312423 is 324213134031.
It is a happy number.
130431312423 is a `hidden beast` number, since 1 + 304 + 3 + 1 + 312 + 42 + 3 = 666.
It is not a de Polignac number, because 130431312423 - 22 = 130431312419 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130431310423) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127125523 + ... + 127126548.
It is an arithmetic number, because the mean of its divisors is an integer number (12712603600).
Almost surely, 2130431312423 is an apocalyptic number.
130431312423 is a deficient number, since it is larger than the sum of its proper divisors (72970345177).
130431312423 is a wasteful number, since it uses less digits than its factorization.
130431312423 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 254252099 (or 254252093 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 27.
Adding to 130431312423 its reverse (324213134031), we get a palindrome (454644446454).
The spelling of 130431312423 in words is "one hundred thirty billion, four hundred thirty-one million, three hundred twelve thousand, four hundred twenty-three".
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