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52021132 = 22711131621
BaseRepresentation
bin1100011001110…
…0011110001100
310121212221120121
43012130132030
5101304134012
65054554324
71201113052
oct306343614
9117787517
1052021132
1127401279
12155089a4
13aa15347
146ca21d2
154878a07
hex319c78c

52021132 has 24 divisors (see below), whose sum is σ = 93193632. Its totient is φ = 25401600.

The previous prime is 52021129. The next prime is 52021133. The reversal of 52021132 is 23112025.

52021132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×520211322 = 5412396349122848, which contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (52021133) 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 7 ways as a sum of consecutive naturals, for example, 31282 + ... + 32902.

It is an arithmetic number, because the mean of its divisors is an integer number (3883068).

Almost surely, 252021132 is an apocalyptic number.

It is an amenable number.

52021132 is a deficient number, since it is larger than the sum of its proper divisors (41172500).

52021132 is a wasteful number, since it uses less digits than its factorization.

52021132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809 (or 1807 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 52021132 is about 7212.5676426637. The cubic root of 52021132 is about 373.3016700045.

Adding to 52021132 its reverse (23112025), we get a palindrome (75133157).

The spelling of 52021132 in words is "fifty-two million, twenty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 71 113 142 226 284 452 1621 3242 6484 8023 16046 32092 115091 183173 230182 366346 460364 732692 13005283 26010566 52021132