Base | Representation |
---|---|
bin | 11001101010000… |
… | …000001110100101 |
3 | 1002222221200120101 |
4 | 121222000032211 |
5 | 1340143111011 |
6 | 110413504101 |
7 | 13444456066 |
oct | 3152001645 |
9 | 1088850511 |
10 | 430441381 |
11 | 200a77a87 |
12 | 1001a2031 |
13 | 6b23c456 |
14 | 4124a56d |
15 | 27bc82c1 |
hex | 19a803a5 |
430441381 has 2 divisors, whose sum is σ = 430441382. Its totient is φ = 430441380.
The previous prime is 430441379. The next prime is 430441421. The reversal of 430441381 is 183144034.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 318801025 + 111640356 = 17855^2 + 10566^2 .
It is a cyclic number.
It is not a de Polignac number, because 430441381 - 21 = 430441379 is a prime.
It is a super-2 number, since 2×4304413812 = 370559564954374322, which contains 22 as substring.
Together with 430441379, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (430441321) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215220690 + 215220691.
It is an arithmetic number, because the mean of its divisors is an integer number (215220691).
Almost surely, 2430441381 is an apocalyptic number.
It is an amenable number.
430441381 is a deficient number, since it is larger than the sum of its proper divisors (1).
430441381 is an equidigital number, since it uses as much as digits as its factorization.
430441381 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4608, while the sum is 28.
The square root of 430441381 is about 20747.0812646020. The cubic root of 430441381 is about 755.0423969291.
The spelling of 430441381 in words is "four hundred thirty million, four hundred forty-one thousand, three hundred eighty-one".
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