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42808206 = 2375319231
BaseRepresentation
bin1010001101001…
…1001110001110
32222112212211010
42203103032032
541424330311
64125310050
71026602160
oct243231616
988485733
1042808206
1122189491
1212405326
138b3aacc
145984930
153b58da6
hex28d338e

42808206 has 32 divisors (see below), whose sum is σ = 99698688. Its totient is φ = 11999520.

The previous prime is 42808187. The next prime is 42808219. The reversal of 42808206 is 60280824.

It is a happy number.

42808206 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 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 15 ways as a sum of consecutive naturals, for example, 7390 + ... + 11841.

It is an arithmetic number, because the mean of its divisors is an integer number (3115584).

Almost surely, 242808206 is an apocalyptic number.

42808206 is an abundant number, since it is smaller than the sum of its proper divisors (56890482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42808206 is a wasteful number, since it uses less digits than its factorization.

42808206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19296.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 42808206 is about 6542.7980253100. The cubic root of 42808206 is about 349.8181531546.

The spelling of 42808206 in words is "forty-two million, eight hundred eight thousand, two hundred six".

Divisors: 1 2 3 6 7 14 21 42 53 106 159 318 371 742 1113 2226 19231 38462 57693 115386 134617 269234 403851 807702 1019243 2038486 3057729 6115458 7134701 14269402 21404103 42808206