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42833689 = 118136269
BaseRepresentation
bin1010001101100…
…1011100011001
32222121011202221
42203121130121
541431134224
64130024041
71030036363
oct243313431
988534687
1042833689
11221a6648
1212418021
138b495a2
14598dd33
153b616e4
hex28d9719

42833689 has 4 divisors (see below), whose sum is σ = 42871140. Its totient is φ = 42796240.

The previous prime is 42833647. The next prime is 42833701. The reversal of 42833689 is 98633824.

42833689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40896025 + 1937664 = 6395^2 + 1392^2 .

It is a cyclic number.

It is not a de Polignac number, because 42833689 - 221 = 40736537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42833639) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16954 + ... + 19315.

It is an arithmetic number, because the mean of its divisors is an integer number (10717785).

Almost surely, 242833689 is an apocalyptic number.

It is an amenable number.

42833689 is a deficient number, since it is larger than the sum of its proper divisors (37451).

42833689 is a wasteful number, since it uses less digits than its factorization.

42833689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37450.

The product of its digits is 248832, while the sum is 43.

The square root of 42833689 is about 6544.7451440068. The cubic root of 42833689 is about 349.8875529929.

The spelling of 42833689 in words is "forty-two million, eight hundred thirty-three thousand, six hundred eighty-nine".

Divisors: 1 1181 36269 42833689