Base | Representation |
---|---|
bin | 11001010111111… |
… | …00010111101001 |
3 | 112211111200220022 |
4 | 30223330113221 |
5 | 413442033212 |
6 | 33042010225 |
7 | 5163106304 |
oct | 1453742751 |
9 | 484450808 |
10 | 212846057 |
11 | aa167436 |
12 | 5b346975 |
13 | 35134418 |
14 | 203a7b3b |
15 | 13a45772 |
hex | cafc5e9 |
212846057 has 4 divisors (see below), whose sum is σ = 212943360. Its totient is φ = 212748756.
The previous prime is 212846017. The next prime is 212846063. The reversal of 212846057 is 750648212.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 212846057 - 210 = 212845033 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (212846017) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45293 + ... + 49770.
It is an arithmetic number, because the mean of its divisors is an integer number (53235840).
Almost surely, 2212846057 is an apocalyptic number.
It is an amenable number.
212846057 is a deficient number, since it is larger than the sum of its proper divisors (97303).
212846057 is an equidigital number, since it uses as much as digits as its factorization.
212846057 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97302.
The product of its (nonzero) digits is 26880, while the sum is 35.
The square root of 212846057 is about 14589.2445657752. The cubic root of 212846057 is about 597.0653522129.
The spelling of 212846057 in words is "two hundred twelve million, eight hundred forty-six thousand, fifty-seven".
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