Base | Representation |
---|---|
bin | 11000010001010011… |
… | …11101101001011111 |
3 | 1020122002110200101012 |
4 | 30020221331221133 |
5 | 203141202320111 |
6 | 5552544405435 |
7 | 640620123065 |
oct | 141051755137 |
9 | 36562420335 |
10 | 13030120031 |
11 | 5587188045 |
12 | 263791687b |
13 | 12c86b94c6 |
14 | 8b876a035 |
15 | 513e0148b |
hex | 308a7da5f |
13030120031 has 4 divisors (see below), whose sum is σ = 13034722272. Its totient is φ = 13025517792.
The previous prime is 13030119997. The next prime is 13030120063. The reversal of 13030120031 is 13002103031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13002103031 = 197 ⋅66000523.
It is a cyclic number.
It is not a de Polignac number, because 13030120031 - 218 = 13029857887 is a prime.
It is a super-2 number, since 2×130301200312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13030119988 and 13030120015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13030120531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2296871 + ... + 2302536.
It is an arithmetic number, because the mean of its divisors is an integer number (3258680568).
Almost surely, 213030120031 is an apocalyptic number.
13030120031 is a deficient number, since it is larger than the sum of its proper divisors (4602241).
13030120031 is an equidigital number, since it uses as much as digits as its factorization.
13030120031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4602240.
The product of its (nonzero) digits is 54, while the sum is 14.
Adding to 13030120031 its reverse (13002103031), we get a palindrome (26032223062).
The spelling of 13030120031 in words is "thirteen billion, thirty million, one hundred twenty thousand, thirty-one".
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