Base | Representation |
---|---|
bin | 1000100001010… |
… | …11010110100111 |
3 | 11222111121010221 |
4 | 10100223112213 |
5 | 121244340433 |
6 | 11032025211 |
7 | 1525401445 |
oct | 420532647 |
9 | 158447127 |
10 | 71480743 |
11 | 373925a4 |
12 | 1bb32207 |
13 | 11a697c9 |
14 | 96c9b95 |
15 | 641e72d |
hex | 442b5a7 |
71480743 has 2 divisors, whose sum is σ = 71480744. Its totient is φ = 71480742.
The previous prime is 71480719. The next prime is 71480779. The reversal of 71480743 is 34708417.
It is a weak prime.
It is an emirp because it is prime and its reverse (34708417) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 71480743 - 29 = 71480231 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 71480699 and 71480708.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (71480713) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35740371 + 35740372.
It is an arithmetic number, because the mean of its divisors is an integer number (35740372).
Almost surely, 271480743 is an apocalyptic number.
71480743 is a deficient number, since it is larger than the sum of its proper divisors (1).
71480743 is an equidigital number, since it uses as much as digits as its factorization.
71480743 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 18816, while the sum is 34.
The square root of 71480743 is about 8454.6284956821. The cubic root of 71480743 is about 415.0142599252.
The spelling of 71480743 in words is "seventy-one million, four hundred eighty thousand, seven hundred forty-three".
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