Search a number
-
+
42808678 = 2117924631
BaseRepresentation
bin1010001101001…
…1010101100110
32222112220110121
42203103111212
541424334203
64125312154
71026603433
oct243232546
988486417
1042808678
1122189880
121240565a
138b3b0a3
145984b8a
153b590bd
hex28d3566

42808678 has 16 divisors (see below), whose sum is σ = 70940160. Its totient is φ = 19211400.

The previous prime is 42808673. The next prime is 42808699. The reversal of 42808678 is 87680824.

42808678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42808673) 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 7 ways as a sum of consecutive naturals, for example, 10578 + ... + 14053.

It is an arithmetic number, because the mean of its divisors is an integer number (4433760).

Almost surely, 242808678 is an apocalyptic number.

42808678 is a deficient number, since it is larger than the sum of its proper divisors (28131482).

42808678 is a wasteful number, since it uses less digits than its factorization.

42808678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24723.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 42808678 is about 6542.8340954054. The cubic root of 42808678 is about 349.8194388393.

The spelling of 42808678 in words is "forty-two million, eight hundred eight thousand, six hundred seventy-eight".

Divisors: 1 2 11 22 79 158 869 1738 24631 49262 270941 541882 1945849 3891698 21404339 42808678