Base | Representation |
---|---|
bin | 1100010111010111010… |
… | …0001101111011011001 |
3 | 202022022121120010211010 |
4 | 3011311310031323121 |
5 | 11440024041122223 |
6 | 241331120324133 |
7 | 21230133244200 |
oct | 3056564157331 |
9 | 668277503733 |
10 | 212430020313 |
11 | 82100232465 |
12 | 35206473649 |
13 | 170555a6594 |
14 | a3d2c7a237 |
15 | 57d4838393 |
hex | 3175d0ded9 |
212430020313 has 24 divisors (see below), whose sum is σ = 329504122560. Its totient is φ = 121380910560.
The previous prime is 212430020291. The next prime is 212430020317. The reversal of 212430020313 is 313020034212.
It is not a de Polignac number, because 212430020313 - 26 = 212430020249 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a self number, because there is not a number n which added to its sum of digits gives 212430020313.
It is not an unprimeable number, because it can be changed into a prime (212430020317) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2957283 + ... + 3028263.
It is an arithmetic number, because the mean of its divisors is an integer number (13729338440).
Almost surely, 2212430020313 is an apocalyptic number.
It is an amenable number.
212430020313 is a deficient number, since it is larger than the sum of its proper divisors (117074102247).
212430020313 is a wasteful number, since it uses less digits than its factorization.
212430020313 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 91357 (or 91350 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 212430020313 its reverse (313020034212), we get a palindrome (525450054525).
The spelling of 212430020313 in words is "two hundred twelve billion, four hundred thirty million, twenty thousand, three hundred thirteen".
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