Base | Representation |
---|---|
bin | 10010101001111001… |
… | …111101101001110000 |
3 | 1220200221202102121212 |
4 | 102221321331221300 |
5 | 312010241212144 |
6 | 13111333135252 |
7 | 1306241463530 |
oct | 225171755160 |
9 | 56627672555 |
10 | 20030413424 |
11 | 854971208a |
12 | 3a7018a528 |
13 | 1b72a95b48 |
14 | d803614c0 |
15 | 7c377749e |
hex | 4a9e7da70 |
20030413424 has 80 divisors (see below), whose sum is σ = 45431282688. Its totient is φ = 8376189696.
The previous prime is 20030413409. The next prime is 20030413441. The reversal of 20030413424 is 42431403002.
It is a self number, because there is not a number n which added to its sum of digits gives 20030413424.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 7159994 + ... + 7162790.
Almost surely, 220030413424 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20030413424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22715641344).
20030413424 is an abundant number, since it is smaller than the sum of its proper divisors (25400869264).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20030413424 is a wasteful number, since it uses less digits than its factorization.
20030413424 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4342 (or 4336 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 23.
Adding to 20030413424 its reverse (42431403002), we get a palindrome (62461816426).
The spelling of 20030413424 in words is "twenty billion, thirty million, four hundred thirteen thousand, four hundred twenty-four".
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