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28394517341 is a prime number
BaseRepresentation
bin11010011100011100…
…011111001101011101
32201021212021221012102
4122130130133031131
5431122444023331
621013321014445
72023433262251
oct323434371535
981255257172
1028394517341
1111050a68163
125605324425
1328a688c968
141535128261
15b12be54cb
hex69c71f35d

28394517341 has 2 divisors, whose sum is σ = 28394517342. Its totient is φ = 28394517340.

The previous prime is 28394517337. The next prime is 28394517421. The reversal of 28394517341 is 14371549382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21027900100 + 7366617241 = 145010^2 + 85829^2 .

It is a cyclic number.

It is not a de Polignac number, because 28394517341 - 22 = 28394517337 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28394510341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14197258670 + 14197258671.

It is an arithmetic number, because the mean of its divisors is an integer number (14197258671).

Almost surely, 228394517341 is an apocalyptic number.

It is an amenable number.

28394517341 is a deficient number, since it is larger than the sum of its proper divisors (1).

28394517341 is an equidigital number, since it uses as much as digits as its factorization.

28394517341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The spelling of 28394517341 in words is "twenty-eight billion, three hundred ninety-four million, five hundred seventeen thousand, three hundred forty-one".