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52845669 = 3319313323
BaseRepresentation
bin1100100110010…
…1110001100101
310200102211122000
43021211301211
5102012030134
65124355513
71211116002
oct311456145
9120384560
1052845669
1127914808
1215845b99
13ac43736
1470388a9
15498ce99
hex3265c65

52845669 has 32 divisors (see below), whose sum is σ = 85094400. Its totient is φ = 32289840.

The previous prime is 52845641. The next prime is 52845691. The reversal of 52845669 is 96654825.

52845669 is a `hidden beast` number, since 5 + 2 + 84 + 566 + 9 = 666.

52845669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52845669 - 29 = 52845157 is a prime.

It is a super-2 number, since 2×528456692 = 5585329464115122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52845629) 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 31 ways as a sum of consecutive naturals, for example, 14242 + ... + 17564.

It is an arithmetic number, because the mean of its divisors is an integer number (2659200).

Almost surely, 252845669 is an apocalyptic number.

It is an amenable number.

52845669 is a deficient number, since it is larger than the sum of its proper divisors (32248731).

52845669 is a wasteful number, since it uses less digits than its factorization.

52845669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382 (or 3376 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 52845669 is about 7269.5026652447. The cubic root of 52845669 is about 375.2636226315.

The spelling of 52845669 in words is "fifty-two million, eight hundred forty-five thousand, six hundred sixty-nine".

Divisors: 1 3 9 19 27 31 57 93 171 279 513 589 837 1767 3323 5301 9969 15903 29907 63137 89721 103013 189411 309039 568233 927117 1704699 1957247 2781351 5871741 17615223 52845669