Base | Representation |
---|---|
bin | 1011101101111011… |
… | …1010000011101001 |
3 | 22010012200222120211 |
4 | 2323132322003221 |
5 | 22420213112023 |
6 | 1240041421121 |
7 | 140642545264 |
oct | 27336720351 |
9 | 8105628524 |
10 | 3145441513 |
11 | 1374579845 |
12 | 73949a7a1 |
13 | 3b18785c6 |
14 | 21ba65cdb |
15 | 136222a0d |
hex | bb7ba0e9 |
3145441513 has 2 divisors, whose sum is σ = 3145441514. Its totient is φ = 3145441512.
The previous prime is 3145441511. The next prime is 3145441547. The reversal of 3145441513 is 3151445413.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2950336489 + 195105024 = 54317^2 + 13968^2 .
It is an emirp because it is prime and its reverse (3151445413) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 3145441513 - 21 = 3145441511 is a prime.
Together with 3145441511, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (3145441511) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572720756 + 1572720757.
It is an arithmetic number, because the mean of its divisors is an integer number (1572720757).
Almost surely, 23145441513 is an apocalyptic number.
It is an amenable number.
3145441513 is a deficient number, since it is larger than the sum of its proper divisors (1).
3145441513 is an equidigital number, since it uses as much as digits as its factorization.
3145441513 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 14400, while the sum is 31.
The square root of 3145441513 is about 56084.2358689142. The cubic root of 3145441513 is about 1465.1897486289.
Adding to 3145441513 its reverse (3151445413), we get a palindrome (6296886926).
The spelling of 3145441513 in words is "three billion, one hundred forty-five million, four hundred forty-one thousand, five hundred thirteen".
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