Base | Representation |
---|---|
bin | 10010101111011100… |
… | …011011001000001010 |
3 | 1220221102121020111110 |
4 | 102233130123020022 |
5 | 312203033130010 |
6 | 13124452511150 |
7 | 1311450336465 |
oct | 225734331012 |
9 | 56842536443 |
10 | 20123333130 |
11 | 859710802a |
12 | 3a9731b4b6 |
13 | 1b890caa14 |
14 | d8c82c2dc |
15 | 7cb9ce120 |
hex | 4af71b20a |
20123333130 has 32 divisors (see below), whose sum is σ = 48664680768. Its totient is φ = 5325257600.
The previous prime is 20123333129. The next prime is 20123333141. The reversal of 20123333130 is 3133332102.
It is a junction number, because it is equal to n+sod(n) for n = 20123333097 and 20123333106.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 2556291 + ... + 2564150.
It is an arithmetic number, because the mean of its divisors is an integer number (1520771274).
Almost surely, 220123333130 is an apocalyptic number.
20123333130 is an abundant number, since it is smaller than the sum of its proper divisors (28541347638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20123333130 is a wasteful number, since it uses less digits than its factorization.
20123333130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5120582.
The product of its (nonzero) digits is 972, while the sum is 21.
Adding to 20123333130 its reverse (3133332102), we get a palindrome (23256665232).
The spelling of 20123333130 in words is "twenty billion, one hundred twenty-three million, three hundred thirty-three thousand, one hundred thirty".
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