Base | Representation |
---|---|
bin | 1100010111101011000… |
… | …1010000011101001011 |
3 | 202022112101221120022100 |
4 | 3011322301100131023 |
5 | 11440211330132230 |
6 | 241343245524443 |
7 | 21232162542333 |
oct | 3057261203513 |
9 | 668471846270 |
10 | 212513130315 |
11 | 82143138212 |
12 | 3522a273723 |
13 | 170698853b5 |
14 | a3ddd120c3 |
15 | 57dbca3660 |
hex | 317ac5074b |
212513130315 has 24 divisors (see below), whose sum is σ = 368756987040. Its totient is φ = 113216984064.
The previous prime is 212513130311. The next prime is 212513130371. The reversal of 212513130315 is 513031315212.
212513130315 is a `hidden beast` number, since 2 + 1 + 2 + 513 + 130 + 3 + 15 = 666.
212513130315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 212513130315 - 22 = 212513130311 is a prime.
It is not an unprimeable number, because it can be changed into a prime (212513130311) 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 23 ways as a sum of consecutive naturals, for example, 2528022 + ... + 2610731.
It is an arithmetic number, because the mean of its divisors is an integer number (15364874460).
Almost surely, 2212513130315 is an apocalyptic number.
212513130315 is a deficient number, since it is larger than the sum of its proper divisors (156243856725).
212513130315 is a wasteful number, since it uses less digits than its factorization.
212513130315 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5139683 (or 5139680 counting only the distinct ones).
The product of its (nonzero) digits is 2700, while the sum is 27.
Adding to 212513130315 its reverse (513031315212), we get a palindrome (725544445527).
The spelling of 212513130315 in words is "two hundred twelve billion, five hundred thirteen million, one hundred thirty thousand, three hundred fifteen".
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