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52732385 = 517236493
BaseRepresentation
bin1100100100101…
…0000111100001
310200020002020022
43021022013201
5101444414020
65122123225
71210134506
oct311120741
9120202208
1052732385
1127847692
12157b0515
13ac03cc4
1470094ad
154969625
hex324a1e1

52732385 has 12 divisors (see below), whose sum is σ = 67221948. Its totient is φ = 39703296.

The previous prime is 52732373. The next prime is 52732387. The reversal of 52732385 is 58323725.

It can be written as a sum of positive squares in 6 ways, for example, as 300304 + 52432081 = 548^2 + 7241^2 .

It is not a de Polignac number, because 52732385 - 26 = 52732321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52732387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16802 + ... + 19691.

It is an arithmetic number, because the mean of its divisors is an integer number (5601829).

Almost surely, 252732385 is an apocalyptic number.

It is an amenable number.

52732385 is a deficient number, since it is larger than the sum of its proper divisors (14489563).

52732385 is a wasteful number, since it uses less digits than its factorization.

52732385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36532 (or 36515 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 52732385 is about 7261.7067553021. The cubic root of 52732385 is about 374.9952829036.

The spelling of 52732385 in words is "fifty-two million, seven hundred thirty-two thousand, three hundred eighty-five".

Divisors: 1 5 17 85 289 1445 36493 182465 620381 3101905 10546477 52732385