Base | Representation |
---|---|
bin | 101010101000000… |
… | …1101110110110101 |
3 | 10200200101111112012 |
4 | 1111100031312311 |
5 | 10412130030141 |
6 | 353532334005 |
7 | 50305320614 |
oct | 12520156665 |
9 | 3620344465 |
10 | 1430314421 |
11 | 674414438 |
12 | 33b014305 |
13 | 19a4338c3 |
14 | d7d6387b |
15 | 85881ceb |
hex | 5540ddb5 |
1430314421 has 2 divisors, whose sum is σ = 1430314422. Its totient is φ = 1430314420.
The previous prime is 1430314411. The next prime is 1430314441. The reversal of 1430314421 is 1244130341.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1024896196 + 405418225 = 32014^2 + 20135^2 .
It is a cyclic number.
It is not a de Polignac number, because 1430314421 - 218 = 1430052277 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1430314411) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715157210 + 715157211.
It is an arithmetic number, because the mean of its divisors is an integer number (715157211).
Almost surely, 21430314421 is an apocalyptic number.
It is an amenable number.
1430314421 is a deficient number, since it is larger than the sum of its proper divisors (1).
1430314421 is an equidigital number, since it uses as much as digits as its factorization.
1430314421 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1152, while the sum is 23.
The square root of 1430314421 is about 37819.4978946046. The cubic root of 1430314421 is about 1126.7057373078.
Adding to 1430314421 its reverse (1244130341), we get a palindrome (2674444762).
The spelling of 1430314421 in words is "one billion, four hundred thirty million, three hundred fourteen thousand, four hundred twenty-one".
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