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115528205 = 5136129137
BaseRepresentation
bin1101110001011…
…01001000001101
322001101102220102
412320231020031
5214033400310
615244100445
72601654632
oct670551015
9261342812
10115528205
115a238061
1232834725
131ac1c6b0
14114b4189
15a2208a5
hex6e2d20d

115528205 has 16 divisors (see below), whose sum is σ = 151750704. Its totient is φ = 83911680.

The previous prime is 115528187. The next prime is 115528213. The reversal of 115528205 is 502825511.

It can be written as a sum of positive squares in 8 ways, for example, as 11202409 + 104325796 = 3347^2 + 10214^2 .

It is not a de Polignac number, because 115528205 - 218 = 115266061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10604 + ... + 18533.

It is an arithmetic number, because the mean of its divisors is an integer number (9484419).

Almost surely, 2115528205 is an apocalyptic number.

It is an amenable number.

115528205 is a deficient number, since it is larger than the sum of its proper divisors (36222499).

115528205 is a wasteful number, since it uses less digits than its factorization.

115528205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29216.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 115528205 is about 10748.4047653594. The cubic root of 115528205 is about 487.0378069529.

The spelling of 115528205 in words is "one hundred fifteen million, five hundred twenty-eight thousand, two hundred five".

Divisors: 1 5 13 61 65 305 793 3965 29137 145685 378781 1777357 1893905 8886785 23105641 115528205