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52115632 = 2419251683
BaseRepresentation
bin1100011011001…
…1100010110000
310122001202012121
43012303202300
5101320200012
65101004024
71201655422
oct306634260
9118052177
1052115632
1127466278
1215553614
13aa4936a
146cc8812
154896a07
hex31b38b0

52115632 has 40 divisors (see below), whose sum is σ = 106868160. Its totient is φ = 24552000.

The previous prime is 52115629. The next prime is 52115653. The reversal of 52115632 is 23651125.

It is a junction number, because it is equal to n+sod(n) for n = 52115597 and 52115606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75963 + ... + 76645.

It is an arithmetic number, because the mean of its divisors is an integer number (2671704).

Almost surely, 252115632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52115632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53434080).

52115632 is an abundant number, since it is smaller than the sum of its proper divisors (54752528).

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

52115632 is a wasteful number, since it uses less digits than its factorization.

52115632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 955 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 52115632 is about 7219.1157353238. The cubic root of 52115632 is about 373.5275760735.

Adding to 52115632 its reverse (23651125), we get a palindrome (75766757).

The spelling of 52115632 in words is "fifty-two million, one hundred fifteen thousand, six hundred thirty-two".

Divisors: 1 2 4 8 16 19 38 76 152 251 304 502 683 1004 1366 2008 2732 4016 4769 5464 9538 10928 12977 19076 25954 38152 51908 76304 103816 171433 207632 342866 685732 1371464 2742928 3257227 6514454 13028908 26057816 52115632