Base | Representation |
---|---|
bin | 11001010011010… |
… | …11111000101101 |
3 | 112210101122002122 |
4 | 30221223320231 |
5 | 413314114003 |
6 | 33021202325 |
7 | 5155063031 |
oct | 1451537055 |
9 | 483348078 |
10 | 212254253 |
11 | a98a2842 |
12 | 5b1003a5 |
13 | 34c87c43 |
14 | 202921c1 |
15 | 1397a238 |
hex | ca6be2d |
212254253 has 4 divisors (see below), whose sum is σ = 217431228. Its totient is φ = 207077280.
The previous prime is 212254223. The next prime is 212254267. The reversal of 212254253 is 352452212.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 120055849 + 92198404 = 10957^2 + 9602^2 .
It is a cyclic number.
It is not a de Polignac number, because 212254253 - 214 = 212237869 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212254213) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2588426 + ... + 2588507.
It is an arithmetic number, because the mean of its divisors is an integer number (54357807).
Almost surely, 2212254253 is an apocalyptic number.
It is an amenable number.
212254253 is a deficient number, since it is larger than the sum of its proper divisors (5176975).
212254253 is an equidigital number, since it uses as much as digits as its factorization.
212254253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5176974.
The product of its digits is 4800, while the sum is 26.
The square root of 212254253 is about 14568.9482461844. The cubic root of 212254253 is about 596.5114720048.
The spelling of 212254253 in words is "two hundred twelve million, two hundred fifty-four thousand, two hundred fifty-three".
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