Base | Representation |
---|---|
bin | 10010101111110110… |
… | …010101000100001001 |
3 | 1220221220101020212200 |
4 | 102233312111010021 |
5 | 312211302432131 |
6 | 13125254230413 |
7 | 1311562142166 |
oct | 225766250411 |
9 | 56856336780 |
10 | 20130124041 |
11 | 859aa26155 |
12 | 3a99655409 |
13 | 1b8a637a01 |
14 | d8d6b906d |
15 | 7cc3c12e6 |
hex | 4afd95109 |
20130124041 has 12 divisors (see below), whose sum is σ = 29403553140. Its totient is φ = 13269294720.
The previous prime is 20130124019. The next prime is 20130124043. The reversal of 20130124041 is 14042103102.
It can be written as a sum of positive squares in 2 ways, for example, as 4867992441 + 15262131600 = 69771^2 + 123540^2 .
It is not a de Polignac number, because 20130124041 - 26 = 20130123977 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20130124043) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12564820 + ... + 12566421.
It is an arithmetic number, because the mean of its divisors is an integer number (2450296095).
Almost surely, 220130124041 is an apocalyptic number.
It is an amenable number.
20130124041 is a deficient number, since it is larger than the sum of its proper divisors (9273429099).
20130124041 is a wasteful number, since it uses less digits than its factorization.
20130124041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25131336 (or 25131333 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 20130124041 its reverse (14042103102), we get a palindrome (34172227143).
The spelling of 20130124041 in words is "twenty billion, one hundred thirty million, one hundred twenty-four thousand, forty-one".
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