Base | Representation |
---|---|
bin | 11001010101100… |
… | …10011100010101 |
3 | 112210221022112100 |
4 | 30222302130111 |
5 | 413402341003 |
6 | 33031312313 |
7 | 5160405426 |
oct | 1452623425 |
9 | 483838470 |
10 | 212543253 |
11 | a9a7a98a |
12 | 5b21b699 |
13 | 35059650 |
14 | 2032964d |
15 | 139d5ba3 |
hex | cab2715 |
212543253 has 48 divisors (see below), whose sum is σ = 363242880. Its totient is φ = 118495872.
The previous prime is 212543251. The next prime is 212543269. The reversal of 212543253 is 352345212.
It is a happy number.
212543253 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 212543253 - 21 = 212543251 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212543251) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49051 + ... + 53207.
It is an arithmetic number, because the mean of its divisors is an integer number (7567560).
Almost surely, 2212543253 is an apocalyptic number.
212543253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
It is an amenable number.
212543253 is a deficient number, since it is larger than the sum of its proper divisors (150699627).
212543253 is a wasteful number, since it uses less digits than its factorization.
212543253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4218 (or 4215 counting only the distinct ones).
The product of its digits is 7200, while the sum is 27.
The square root of 212543253 is about 14578.8632272890. The cubic root of 212543253 is about 596.7820808472.
Adding to 212543253 its reverse (352345212), we get a palindrome (564888465).
The spelling of 212543253 in words is "two hundred twelve million, five hundred forty-three thousand, two hundred fifty-three".
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