Base | Representation |
---|---|
bin | 11001100100000… |
… | …10110101101001 |
3 | 112221111221210212 |
4 | 30302002311221 |
5 | 414344223132 |
6 | 33140150505 |
7 | 5212520204 |
oct | 1462026551 |
9 | 487457725 |
10 | 214445417 |
11 | 10005a01a |
12 | 5b998435 |
13 | 355743a4 |
14 | 206a293b |
15 | 13c5e5b2 |
hex | cc82d69 |
214445417 has 2 divisors, whose sum is σ = 214445418. Its totient is φ = 214445416.
The previous prime is 214445351. The next prime is 214445449. The reversal of 214445417 is 714544412.
It is an a-pointer prime, because the next prime (214445449) can be obtained adding 214445417 to its sum of digits (32).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 185940496 + 28504921 = 13636^2 + 5339^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-214445417 is a prime.
It is not a weakly prime, because it can be changed into another prime (214445467) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107222708 + 107222709.
It is an arithmetic number, because the mean of its divisors is an integer number (107222709).
Almost surely, 2214445417 is an apocalyptic number.
It is an amenable number.
214445417 is a deficient number, since it is larger than the sum of its proper divisors (1).
214445417 is an equidigital number, since it uses as much as digits as its factorization.
214445417 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 17920, while the sum is 32.
The square root of 214445417 is about 14643.9549644213. The cubic root of 214445417 is about 598.5571041638.
Adding to 214445417 its reverse (714544412), we get a palindrome (928989829).
The spelling of 214445417 in words is "two hundred fourteen million, four hundred forty-five thousand, four hundred seventeen".
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