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28528054613 is a prime number
BaseRepresentation
bin11010100100011001…
…111001000101010101
32201122011120022220022
4122210121321011111
5431411140221423
621034451114525
72026644314612
oct324431710525
981564508808
1028528054613
111110a385743
125641ba2a45
1328c84464b6
141548b69509
15b1e7c1dc8
hex6a4679155

28528054613 has 2 divisors, whose sum is σ = 28528054614. Its totient is φ = 28528054612.

The previous prime is 28528054601. The next prime is 28528054619. The reversal of 28528054613 is 31645082582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26752527844 + 1775526769 = 163562^2 + 42137^2 .

It is a cyclic number.

It is not a de Polignac number, because 28528054613 - 26 = 28528054549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28528054619) 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, 14264027306 + 14264027307.

It is an arithmetic number, because the mean of its divisors is an integer number (14264027307).

Almost surely, 228528054613 is an apocalyptic number.

It is an amenable number.

28528054613 is a deficient number, since it is larger than the sum of its proper divisors (1).

28528054613 is an equidigital number, since it uses as much as digits as its factorization.

28528054613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 28528054613 in words is "twenty-eight billion, five hundred twenty-eight million, fifty-four thousand, six hundred thirteen".