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85133115 = 3253751131
BaseRepresentation
bin1010001001100…
…00011100111011
312221012012200100
411010300130323
5133243224430
612240410443
72052422334
oct504603473
9187165610
1085133115
1144067851
1224616a23
1314839932
14b44128b
157719960
hex513073b

85133115 has 24 divisors (see below), whose sum is σ = 151555248. Its totient is φ = 44176320.

The previous prime is 85133071. The next prime is 85133123. The reversal of 85133115 is 51133158.

It is not a de Polignac number, because 85133115 - 27 = 85132987 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 23901 + ... + 27230.

It is an arithmetic number, because the mean of its divisors is an integer number (6314802).

Almost surely, 285133115 is an apocalyptic number.

85133115 is a deficient number, since it is larger than the sum of its proper divisors (66422133).

85133115 is a wasteful number, since it uses less digits than its factorization.

85133115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51179 (or 51176 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 85133115 is about 9226.7608075640. The cubic root of 85133115 is about 439.9123706345.

It can be divided in two parts, 8513 and 3115, that added together give a triangular number (11628 = T152).

The spelling of 85133115 in words is "eighty-five million, one hundred thirty-three thousand, one hundred fifteen".

Divisors: 1 3 5 9 15 37 45 111 185 333 555 1665 51131 153393 255655 460179 766965 1891847 2300895 5675541 9459235 17026623 28377705 85133115