Base | Representation |
---|---|
bin | 1111100010011… |
… | …10000001110111 |
3 | 100002021010000200 |
4 | 13301032001313 |
5 | 231331434111 |
6 | 20533411543 |
7 | 3141616560 |
oct | 761160167 |
9 | 302233020 |
10 | 130343031 |
11 | 67636715 |
12 | 37799bb3 |
13 | 21008970 |
14 | 1344d167 |
15 | b69a256 |
hex | 7c4e077 |
130343031 has 48 divisors (see below), whose sum is σ = 235609920. Its totient is φ = 67599360.
The previous prime is 130342981. The next prime is 130343039.
130343031 is nontrivially palindromic in base 10.
It is not a de Polignac number, because 130343031 - 221 = 128245879 is a prime.
It is a super-2 number, since 2×1303430312 = 33978611460533922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 130342995 and 130343013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130343039) 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, 48655 + ... + 51263.
It is an arithmetic number, because the mean of its divisors is an integer number (4908540).
Almost surely, 2130343031 is an apocalyptic number.
130343031 is a deficient number, since it is larger than the sum of its proper divisors (105266889).
130343031 is a wasteful number, since it uses less digits than its factorization.
130343031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2696 (or 2693 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 130343031 is about 11416.7872451053. The cubic root of 130343031 is about 507.0248811943.
The spelling of 130343031 in words is "one hundred thirty million, three hundred forty-three thousand, thirty-one".
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