Base | Representation |
---|---|
bin | 1001010010101000001001… |
… | …10011110101011110010110 |
3 | 2200100012121020211121202200 |
4 | 10221110010303311132112 |
5 | 10134221134432434220 |
6 | 111241552050345330 |
7 | 4206052114423341 |
oct | 451240463653626 |
9 | 80305536747680 |
10 | 20431240124310 |
11 | 6567927455194 |
12 | 235b864b8b246 |
13 | b52871bb9922 |
14 | 508c3d441458 |
15 | 2566e41bc890 |
hex | 129504cf5796 |
20431240124310 has 96 divisors (see below), whose sum is σ = 55011501312768. Its totient is φ = 5257509284160.
The previous prime is 20431240124303. The next prime is 20431240124311. The reversal of 20431240124310 is 1342104213402.
20431240124310 is a `hidden beast` number, since 2 + 0 + 4 + 3 + 1 + 2 + 401 + 243 + 10 = 666.
It is a super-2 number, since 2×204312401243102 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20431240124311) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31482346 + ... + 32124765.
It is an arithmetic number, because the mean of its divisors is an integer number (573036472008).
Almost surely, 220431240124310 is an apocalyptic number.
20431240124310 is an abundant number, since it is smaller than the sum of its proper divisors (34580261188458).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20431240124310 is a wasteful number, since it uses less digits than its factorization.
20431240124310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63607250 (or 63607247 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 27.
Adding to 20431240124310 its reverse (1342104213402), we get a palindrome (21773344337712).
The spelling of 20431240124310 in words is "twenty trillion, four hundred thirty-one billion, two hundred forty million, one hundred twenty-four thousand, three hundred ten".
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