Base | Representation |
---|---|
bin | 111101000001000010… |
… | …0100110010000010110 |
3 | 110112012210102210110020 |
4 | 1322002010212100112 |
5 | 4121323000342410 |
6 | 140110034410010 |
7 | 12316035231531 |
oct | 1720204462026 |
9 | 415183383406 |
10 | 131031262230 |
11 | 5062a805770 |
12 | 2148a130906 |
13 | c48273937b |
14 | 64b0433a18 |
15 | 361d66ca70 |
hex | 1e82126416 |
131031262230 has 64 divisors (see below), whose sum is σ = 346460426496. Its totient is φ = 31450640000.
The previous prime is 131031262213. The next prime is 131031262261. The reversal of 131031262230 is 32262130131.
It is a self number, because there is not a number n which added to its sum of digits gives 131031262230.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1932336 + ... + 1998995.
It is an arithmetic number, because the mean of its divisors is an integer number (5413444164).
Almost surely, 2131031262230 is an apocalyptic number.
131031262230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131031262230 is an abundant number, since it is smaller than the sum of its proper divisors (215429164266).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131031262230 is a wasteful number, since it uses less digits than its factorization.
131031262230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3931453.
The product of its (nonzero) digits is 1296, while the sum is 24.
Adding to 131031262230 its reverse (32262130131), we get a palindrome (163293392361).
The spelling of 131031262230 in words is "one hundred thirty-one billion, thirty-one million, two hundred sixty-two thousand, two hundred thirty".
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