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18429048293 is a prime number
BaseRepresentation
bin10001001010011101…
…001111010111100101
31202120100111122122012
4101022131033113211
5300220314021133
612244410244005
71221455216525
oct211235172745
952510448565
1018429048293
1178a7798827
1236a3a26605
1319790a2906
14c6b7d3685
1572cda8b48
hex44a74f5e5

18429048293 has 2 divisors, whose sum is σ = 18429048294. Its totient is φ = 18429048292.

The previous prime is 18429048251. The next prime is 18429048349. The reversal of 18429048293 is 39284092481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18425890564 + 3157729 = 135742^2 + 1777^2 .

It is a cyclic number.

It is not a de Polignac number, because 18429048293 - 212 = 18429044197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18429048193) 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, 9214524146 + 9214524147.

It is an arithmetic number, because the mean of its divisors is an integer number (9214524147).

Almost surely, 218429048293 is an apocalyptic number.

It is an amenable number.

18429048293 is a deficient number, since it is larger than the sum of its proper divisors (1).

18429048293 is an equidigital number, since it uses as much as digits as its factorization.

18429048293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 18429048293 in words is "eighteen billion, four hundred twenty-nine million, forty-eight thousand, two hundred ninety-three".