Base | Representation |
---|---|
bin | 111101000001000000… |
… | …0111100000110011011 |
3 | 110112012201122001211001 |
4 | 1322002000330012123 |
5 | 4121322224200011 |
6 | 140110002045431 |
7 | 12316024125400 |
oct | 1720200740633 |
9 | 415181561731 |
10 | 131030303131 |
11 | 5062a210122 |
12 | 21489949877 |
13 | c482491960 |
14 | 64b02642a7 |
15 | 361d52d7c1 |
hex | 1e8203c19b |
131030303131 has 12 divisors (see below), whose sum is σ = 164147853072. Its totient is φ = 103672327248.
The previous prime is 131030303119. The next prime is 131030303137. The reversal of 131030303131 is 131303030131.
It is a happy number.
It is not a de Polignac number, because 131030303131 - 213 = 131030294939 is a prime.
It is a super-2 number, since 2×1310303031312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 131030303099 and 131030303108.
It is not an unprimeable number, because it can be changed into a prime (131030303137) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102848895 + ... + 102850168.
It is an arithmetic number, because the mean of its divisors is an integer number (13678987756).
Almost surely, 2131030303131 is an apocalyptic number.
131030303131 is a deficient number, since it is larger than the sum of its proper divisors (33117549941).
131030303131 is a wasteful number, since it uses less digits than its factorization.
131030303131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 205699090 (or 205699083 counting only the distinct ones).
The product of its (nonzero) digits is 243, while the sum is 19.
Adding to 131030303131 its reverse (131303030131), we get a palindrome (262333333262).
The spelling of 131030303131 in words is "one hundred thirty-one billion, thirty million, three hundred three thousand, one hundred thirty-one".
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