Base | Representation |
---|---|
bin | 100001101011001100… |
… | …0110001110100111101 |
3 | 20220122211212111100012 |
4 | 1003112120301310331 |
5 | 2141100432442014 |
6 | 53115513113005 |
7 | 5140031243462 |
oct | 1032630616475 |
9 | 226584774305 |
10 | 72316296509 |
11 | 2873a733a06 |
12 | 120226b8765 |
13 | 6a862a72c2 |
14 | 37004c7669 |
15 | 1d33b50c3e |
hex | 10d6631d3d |
72316296509 has 2 divisors, whose sum is σ = 72316296510. Its totient is φ = 72316296508.
The previous prime is 72316296499. The next prime is 72316296517. The reversal of 72316296509 is 90569261327.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 47152819609 + 25163476900 = 217147^2 + 158630^2 .
It is an emirp because it is prime and its reverse (90569261327) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 72316296509 - 28 = 72316296253 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (72316296589) 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, 36158148254 + 36158148255.
It is an arithmetic number, because the mean of its divisors is an integer number (36158148255).
Almost surely, 272316296509 is an apocalyptic number.
It is an amenable number.
72316296509 is a deficient number, since it is larger than the sum of its proper divisors (1).
72316296509 is an equidigital number, since it uses as much as digits as its factorization.
72316296509 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1224720, while the sum is 50.
The spelling of 72316296509 in words is "seventy-two billion, three hundred sixteen million, two hundred ninety-six thousand, five hundred nine".
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