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128055583 is a prime number
BaseRepresentation
bin1111010000111…
…11100100011111
322220221220020101
413220133210133
5230240234313
620412401531
73113311615
oct750374437
9286856211
10128055583
1166314067
1236a762a7
13206b7746
14130156b5
15b3975dd
hex7a1f91f

128055583 has 2 divisors, whose sum is σ = 128055584. Its totient is φ = 128055582.

The previous prime is 128055569. The next prime is 128055593. The reversal of 128055583 is 385550821.

It is a strong prime.

It is an emirp because it is prime and its reverse (385550821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128055583 - 29 = 128055071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128055523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64027791 + 64027792.

It is an arithmetic number, because the mean of its divisors is an integer number (64027792).

Almost surely, 2128055583 is an apocalyptic number.

128055583 is a deficient number, since it is larger than the sum of its proper divisors (1).

128055583 is an equidigital number, since it uses as much as digits as its factorization.

128055583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 128055583 is about 11316.1646771333. The cubic root of 128055583 is about 504.0413575178.

The spelling of 128055583 in words is "one hundred twenty-eight million, fifty-five thousand, five hundred eighty-three".