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52355880 = 23325145433
BaseRepresentation
bin1100011110111…
…0001100101000
310122111221202200
43013232030220
5101400342010
65110100200
71204006023
oct307561450
9118457680
1052355880
112760a825
121564a660
13ab01815
146d4c1ba
1548e2cc0
hex31ee328

52355880 has 48 divisors (see below), whose sum is σ = 170157780. Its totient is φ = 13961472.

The previous prime is 52355857. The next prime is 52355881. The reversal of 52355880 is 8855325.

52355880 is a `hidden beast` number, since 5 + 23 + 558 + 80 = 666.

52355880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 48692484 + 3663396 = 6978^2 + 1914^2 .

It is a super-2 number, since 2×523558802 = 5482276341148800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (52355881) 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 11 ways as a sum of consecutive naturals, for example, 72357 + ... + 73076.

Almost surely, 252355880 is an apocalyptic number.

It is an amenable number.

52355880 is an abundant number, since it is smaller than the sum of its proper divisors (117801900).

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

52355880 is a wasteful number, since it uses less digits than its factorization.

52355880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145450 (or 145443 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 52355880 is about 7235.7363136035. The cubic root of 52355880 is about 374.1006716133.

It can be divided in two parts, 52355 and 880, that added together give a palindrome (53235).

The spelling of 52355880 in words is "fifty-two million, three hundred fifty-five thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 145433 290866 436299 581732 727165 872598 1163464 1308897 1454330 1745196 2181495 2617794 2908660 3490392 4362990 5235588 5817320 6544485 8725980 10471176 13088970 17451960 26177940 52355880