Base | Representation |
---|---|
bin | 1000100001001… |
… | …10101001000001 |
3 | 11222110121200001 |
4 | 10100212221001 |
5 | 121243231231 |
6 | 11031400001 |
7 | 1525261252 |
oct | 420465101 |
9 | 158417601 |
10 | 71461441 |
11 | 3737a047 |
12 | 1bb23001 |
13 | 11a60a9c |
14 | 96c2b29 |
15 | 6418b61 |
hex | 4426a41 |
71461441 has 2 divisors, whose sum is σ = 71461442. Its totient is φ = 71461440.
The previous prime is 71461427. The next prime is 71461447. The reversal of 71461441 is 14416417.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 39425841 + 32035600 = 6279^2 + 5660^2 .
It is an emirp because it is prime and its reverse (14416417) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 71461441 - 29 = 71460929 is a prime.
It is not a weakly prime, because it can be changed into another prime (71461447) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35730720 + 35730721.
It is an arithmetic number, because the mean of its divisors is an integer number (35730721).
Almost surely, 271461441 is an apocalyptic number.
It is an amenable number.
71461441 is a deficient number, since it is larger than the sum of its proper divisors (1).
71461441 is an equidigital number, since it uses as much as digits as its factorization.
71461441 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2688, while the sum is 28.
The square root of 71461441 is about 8453.4869136943. The cubic root of 71461441 is about 414.9769010224.
Adding to 71461441 its reverse (14416417), we get a palindrome (85877858).
The spelling of 71461441 in words is "seventy-one million, four hundred sixty-one thousand, four hundred forty-one".
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