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53328852 = 22321481357
BaseRepresentation
bin1100101101101…
…1101111010100
310201100101102200
43023123233110
5102123010402
65143004500
71215200463
oct313335724
9121311380
1053328852
1128114835
1215a39730
13b082645
1471229da
154a3621c
hex32dbbd4

53328852 has 18 divisors (see below), whose sum is σ = 134803578. Its totient is φ = 17776272.

The previous prime is 53328829. The next prime is 53328857. The reversal of 53328852 is 25882335.

It can be written as a sum of positive squares in only one way, i.e., 48944016 + 4384836 = 6996^2 + 2094^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1481357 = 53328852 / (5 + 3 + 3 + 2 + 8 + 8 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53328857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 740643 + ... + 740714.

Almost surely, 253328852 is an apocalyptic number.

It is an amenable number.

53328852 is an abundant number, since it is smaller than the sum of its proper divisors (81474726).

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

53328852 is a wasteful number, since it uses less digits than its factorization.

53328852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481367 (or 1481362 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 53328852 is about 7302.6606110376. The cubic root of 53328852 is about 376.4038685168.

The spelling of 53328852 in words is "fifty-three million, three hundred twenty-eight thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 1481357 2962714 4444071 5925428 8888142 13332213 17776284 26664426 53328852