Base | Representation |
---|---|
bin | 10010101111111101… |
… | …111110111000000001 |
3 | 1220222001011011221202 |
4 | 102233331332320001 |
5 | 312212311132210 |
6 | 13125405230545 |
7 | 1311615166310 |
oct | 225775767001 |
9 | 56861134852 |
10 | 20132130305 |
11 | 85a1076521 |
12 | 3a9a262455 |
13 | 1b8ab8ac51 |
14 | d8da7c277 |
15 | 7cc66a9a5 |
hex | 4aff7ee01 |
20132130305 has 16 divisors (see below), whose sum is σ = 27618407040. Its totient is φ = 13800575232.
The previous prime is 20132130289. The next prime is 20132130313. The reversal of 20132130305 is 50303123102.
It is a cyclic number.
It is not a de Polignac number, because 20132130305 - 24 = 20132130289 is a prime.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25817 + ... + 202313.
It is an arithmetic number, because the mean of its divisors is an integer number (1726150440).
Almost surely, 220132130305 is an apocalyptic number.
It is an amenable number.
20132130305 is a deficient number, since it is larger than the sum of its proper divisors (7486276735).
20132130305 is a wasteful number, since it uses less digits than its factorization.
20132130305 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 179768.
The product of its (nonzero) digits is 540, while the sum is 20.
Adding to 20132130305 its reverse (50303123102), we get a palindrome (70435253407).
The spelling of 20132130305 in words is "twenty billion, one hundred thirty-two million, one hundred thirty thousand, three hundred five".
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