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52808166 = 2334720807
BaseRepresentation
bin1100100101110…
…0100111100110
310200100221012000
43021130213212
5102004330131
65123510130
71210601445
oct311344746
9120327160
1052808166
1127899614
1215828346
13ac2c648
147028d5c
154981ce6
hex325c9e6

52808166 has 32 divisors (see below), whose sum is σ = 119854080. Its totient is φ = 17227368.

The previous prime is 52808149. The next prime is 52808179. The reversal of 52808166 is 66180825.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 52808166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7866 + ... + 12941.

It is an arithmetic number, because the mean of its divisors is an integer number (3745440).

Almost surely, 252808166 is an apocalyptic number.

52808166 is an abundant number, since it is smaller than the sum of its proper divisors (67045914).

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

52808166 is a wasteful number, since it uses less digits than its factorization.

52808166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20865 (or 20859 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 52808166 is about 7266.9227324914. The cubic root of 52808166 is about 375.1748304788.

The spelling of 52808166 in words is "fifty-two million, eight hundred eight thousand, one hundred sixty-six".

Divisors: 1 2 3 6 9 18 27 47 54 94 141 282 423 846 1269 2538 20807 41614 62421 124842 187263 374526 561789 977929 1123578 1955858 2933787 5867574 8801361 17602722 26404083 52808166