Base | Representation |
---|---|
bin | 11001010100111… |
… | …00010010011011 |
3 | 112210202201001101 |
4 | 30222130102123 |
5 | 413341440012 |
6 | 33025332231 |
7 | 5156550031 |
oct | 1452342233 |
9 | 483681041 |
10 | 212452507 |
11 | a9a18793 |
12 | 5b197077 |
13 | 35027257 |
14 | 20304551 |
15 | 139b8d57 |
hex | ca9c49b |
212452507 has 2 divisors, whose sum is σ = 212452508. Its totient is φ = 212452506.
The previous prime is 212452481. The next prime is 212452531. The reversal of 212452507 is 705254212.
212452507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-212452507 is a prime.
It is not a weakly prime, because it can be changed into another prime (212458507) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106226253 + 106226254.
It is an arithmetic number, because the mean of its divisors is an integer number (106226254).
Almost surely, 2212452507 is an apocalyptic number.
212452507 is a deficient number, since it is larger than the sum of its proper divisors (1).
212452507 is an equidigital number, since it uses as much as digits as its factorization.
212452507 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 5600, while the sum is 28.
The square root of 212452507 is about 14575.7506496235. The cubic root of 212452507 is about 596.6971361044.
The spelling of 212452507 in words is "two hundred twelve million, four hundred fifty-two thousand, five hundred seven".
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