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115028815 = 5115339461
BaseRepresentation
bin1101101101100…
…11001101001111
322000110001212111
412312303031033
5213421410230
615225244451
72564504656
oct666631517
9260401774
10115028815
1159a26940
1232633727
131aaa62b5
14113c419d
15a17292a
hex6db334f

115028815 has 16 divisors (see below), whose sum is σ = 153428256. Its totient is φ = 82076800.

The previous prime is 115028813. The next prime is 115028833. The reversal of 115028815 is 518820511.

It is not a de Polignac number, because 115028815 - 21 = 115028813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115028813) 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 in 15 ways as a sum of consecutive naturals, for example, 16816 + ... + 22645.

It is an arithmetic number, because the mean of its divisors is an integer number (9589266).

Almost surely, 2115028815 is an apocalyptic number.

115028815 is a deficient number, since it is larger than the sum of its proper divisors (38399441).

115028815 is a wasteful number, since it uses less digits than its factorization.

115028815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39530.

The product of its (nonzero) digits is 3200, while the sum is 31.

The square root of 115028815 is about 10725.1487169176. The cubic root of 115028815 is about 486.3350258727.

The spelling of 115028815 in words is "one hundred fifteen million, twenty-eight thousand, eight hundred fifteen".

Divisors: 1 5 11 53 55 265 583 2915 39461 197305 434071 2091433 2170355 10457165 23005763 115028815