Base | Representation |
---|---|
bin | 111100110100010… |
… | …010110010110111 |
3 | 2122002221201022101 |
4 | 330310102302313 |
5 | 4042201411211 |
6 | 245125242531 |
7 | 34166521234 |
oct | 7464226267 |
9 | 2562851271 |
10 | 1020341431 |
11 | 483a5768a |
12 | 245863447 |
13 | 13350cb35 |
14 | 9972478b |
15 | 5e89d5c1 |
hex | 3cd12cb7 |
1020341431 has 2 divisors, whose sum is σ = 1020341432. Its totient is φ = 1020341430.
The previous prime is 1020341383. The next prime is 1020341473. The reversal of 1020341431 is 1341430201.
It is a strong prime.
It is an emirp because it is prime and its reverse (1341430201) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1020341431 is a prime.
It is a super-3 number, since 3×10203414313 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a junction number, because it is equal to n+sod(n) for n = 1020341399 and 1020341408.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1020341731) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510170715 + 510170716.
It is an arithmetic number, because the mean of its divisors is an integer number (510170716).
Almost surely, 21020341431 is an apocalyptic number.
1020341431 is a deficient number, since it is larger than the sum of its proper divisors (1).
1020341431 is an equidigital number, since it uses as much as digits as its factorization.
1020341431 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 288, while the sum is 19.
The square root of 1020341431 is about 31942.7837077485. The cubic root of 1020341431 is about 1006.7350147421.
Adding to 1020341431 its reverse (1341430201), we get a palindrome (2361771632).
The spelling of 1020341431 in words is "one billion, twenty million, three hundred forty-one thousand, four hundred thirty-one".
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