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720720974041 is a prime number
BaseRepresentation
bin10100111110011100101…
…00010101000011011001
32112220022021122221102221
422133032110111003121
543302014032132131
61311032235424041
7103033065125365
oct12371624250331
92486267587387
10720720974041
11258724223132
12b781bbb5021
1352c6b318823
1426c512642a5
1513b3328a411
hexa7ce5150d9

720720974041 has 2 divisors, whose sum is σ = 720720974042. Its totient is φ = 720720974040.

The previous prime is 720720974003. The next prime is 720720974047. The reversal of 720720974041 is 140479027027.

720720974041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 670097774025 + 50623200016 = 818595^2 + 224996^2 .

It is a cyclic number.

It is not a de Polignac number, because 720720974041 - 215 = 720720941273 is a prime.

It is not a weakly prime, because it can be changed into another prime (720720974047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360360487020 + 360360487021.

It is an arithmetic number, because the mean of its divisors is an integer number (360360487021).

Almost surely, 2720720974041 is an apocalyptic number.

It is an amenable number.

720720974041 is a deficient number, since it is larger than the sum of its proper divisors (1).

720720974041 is an equidigital number, since it uses as much as digits as its factorization.

720720974041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 720720974041 in words is "seven hundred twenty billion, seven hundred twenty million, nine hundred seventy-four thousand, forty-one".