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52115120 = 245651439
BaseRepresentation
bin1100011011001…
…1011010110000
310122001201111122
43012303122300
5101320140440
65101001412
71201654061
oct306633260
9118051448
1052115120
1127465952
1215553268
13aa49065
146cc8568
1548967b5
hex31b36b0

52115120 has 20 divisors (see below), whose sum is σ = 121167840. Its totient is φ = 20846016.

The previous prime is 52115111. The next prime is 52115177. The reversal of 52115120 is 2151125.

52115120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×521151202 = 5431971465228800, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 325640 + ... + 325799.

It is an arithmetic number, because the mean of its divisors is an integer number (6058392).

Almost surely, 252115120 is an apocalyptic number.

It is an amenable number.

52115120 is an abundant number, since it is smaller than the sum of its proper divisors (69052720).

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

52115120 is a wasteful number, since it uses less digits than its factorization.

52115120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651452 (or 651446 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 52115120 is about 7219.0802738299. The cubic root of 52115120 is about 373.5263528529.

Adding to 52115120 its reverse (2151125), we get a palindrome (54266245).

The spelling of 52115120 in words is "fifty-two million, one hundred fifteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 651439 1302878 2605756 3257195 5211512 6514390 10423024 13028780 26057560 52115120