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52891441 = 64818161
BaseRepresentation
bin1100100111000…
…0111100110001
310200112011102021
43021300330301
5102020011231
65125351441
71211366311
oct311607461
9120464367
1052891441
1127946139
1215868581
13ac5b515
14704b441
15499b811
hex3270f31

52891441 has 4 divisors (see below), whose sum is σ = 52906084. Its totient is φ = 52876800.

The previous prime is 52891411. The next prime is 52891451. The reversal of 52891441 is 14419825.

It is a happy number.

52891441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 37454400 + 15437041 = 6120^2 + 3929^2 .

It is a cyclic number.

It is not a de Polignac number, because 52891441 - 25 = 52891409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52891397 and 52891406.

It is not an unprimeable number, because it can be changed into a prime (52891411) 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 3 ways as a sum of consecutive naturals, for example, 2401 + ... + 10561.

It is an arithmetic number, because the mean of its divisors is an integer number (13226521).

Almost surely, 252891441 is an apocalyptic number.

It is an amenable number.

52891441 is a deficient number, since it is larger than the sum of its proper divisors (14643).

52891441 is an equidigital number, since it uses as much as digits as its factorization.

52891441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14642.

The product of its digits is 11520, while the sum is 34.

The square root of 52891441 is about 7272.6502047053. The cubic root of 52891441 is about 375.3719355744.

The spelling of 52891441 in words is "fifty-two million, eight hundred ninety-one thousand, four hundred forty-one".

Divisors: 1 6481 8161 52891441