Base | Representation |
---|---|
bin | 111101001100111011… |
… | …0100011000011110111 |
3 | 110120020121011120111220 |
4 | 1322121312203003313 |
5 | 4123132114413221 |
6 | 140213410001423 |
7 | 12331651353600 |
oct | 1723166430367 |
9 | 416217146456 |
10 | 131430232311 |
11 | 50814a37904 |
12 | 2157b876273 |
13 | c5172a9c41 |
14 | 650b40ada7 |
15 | 36436cb0c6 |
hex | 1e99da30f7 |
131430232311 has 24 divisors (see below), whose sum is σ = 203866254720. Its totient is φ = 75097359792.
The previous prime is 131430232309. The next prime is 131430232357. The reversal of 131430232311 is 113232034131.
It is not a de Polignac number, because 131430232311 - 21 = 131430232309 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131430232361) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2677390 + ... + 2726036.
It is an arithmetic number, because the mean of its divisors is an integer number (8494427280).
Almost surely, 2131430232311 is an apocalyptic number.
131430232311 is a deficient number, since it is larger than the sum of its proper divisors (72436022409).
131430232311 is a wasteful number, since it uses less digits than its factorization.
131430232311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 67043 (or 67036 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 24.
Adding to 131430232311 its reverse (113232034131), we get a palindrome (244662266442).
The spelling of 131430232311 in words is "one hundred thirty-one billion, four hundred thirty million, two hundred thirty-two thousand, three hundred eleven".
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