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85787193 = 343665017
BaseRepresentation
bin1010001110100…
…00001000111001
312222102102220110
411013100020321
5133430142233
612302414533
72061115302
oct507201071
9188372813
1085787193
1144474208
1224891449
1314a0856b
14b5717a9
1577e8663
hex51d0239

85787193 has 8 divisors (see below), whose sum is σ = 117043168. Its totient is φ = 55861344.

The previous prime is 85787183. The next prime is 85787203. The reversal of 85787193 is 39178758.

It is an interprime number because it is at equal distance from previous prime (85787183) and next prime (85787203).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85787193 - 25 = 85787161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85787183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332380 + ... + 332637.

It is an arithmetic number, because the mean of its divisors is an integer number (14630396).

Almost surely, 285787193 is an apocalyptic number.

It is an amenable number.

85787193 is a deficient number, since it is larger than the sum of its proper divisors (31255975).

85787193 is a wasteful number, since it uses less digits than its factorization.

85787193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665063.

The product of its digits is 423360, while the sum is 48.

The square root of 85787193 is about 9262.1376042467. The cubic root of 85787193 is about 441.0361136812.

The spelling of 85787193 in words is "eighty-five million, seven hundred eighty-seven thousand, one hundred ninety-three".

Divisors: 1 3 43 129 665017 1995051 28595731 85787193