Base | Representation |
---|---|
bin | 11110001011110… |
… | …11010110010001 |
3 | 122122110111122001 |
4 | 33011323112101 |
5 | 1004310241144 |
6 | 41043114001 |
7 | 6163160356 |
oct | 1705732621 |
9 | 578414561 |
10 | 253212049 |
11 | 11aa27a62 |
12 | 70972901 |
13 | 405c871c |
14 | 258b462d |
15 | 1736abd4 |
hex | f17b591 |
253212049 has 2 divisors, whose sum is σ = 253212050. Its totient is φ = 253212048.
The previous prime is 253212041. The next prime is 253212067. The reversal of 253212049 is 940212352.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 217031824 + 36180225 = 14732^2 + 6015^2 .
It is a cyclic number.
It is not a de Polignac number, because 253212049 - 23 = 253212041 is a prime.
It is not a weakly prime, because it can be changed into another prime (253212041) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126606024 + 126606025.
It is an arithmetic number, because the mean of its divisors is an integer number (126606025).
Almost surely, 2253212049 is an apocalyptic number.
It is an amenable number.
253212049 is a deficient number, since it is larger than the sum of its proper divisors (1).
253212049 is an equidigital number, since it uses as much as digits as its factorization.
253212049 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4320, while the sum is 28.
The square root of 253212049 is about 15912.6380276810. The cubic root of 253212049 is about 632.6470042162.
The spelling of 253212049 in words is "two hundred fifty-three million, two hundred twelve thousand, forty-nine".
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