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52444253 = 67097817
BaseRepresentation
bin1100100000001…
…1110001011101
310122200102222202
43020003301131
5101411204003
65112021245
71204524461
oct310036135
9118612882
1052444253
1127670164
1215691825
13ab32b04
146d724a1
15490e088
hex3203c5d

52444253 has 4 divisors (see below), whose sum is σ = 52458780. Its totient is φ = 52429728.

The previous prime is 52444243. The next prime is 52444291. The reversal of 52444253 is 35244425.

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 12020089 + 40424164 = 3467^2 + 6358^2 .

It is a cyclic number.

It is not a de Polignac number, because 52444253 - 210 = 52443229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52444243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2801 + ... + 10617.

It is an arithmetic number, because the mean of its divisors is an integer number (13114695).

Almost surely, 252444253 is an apocalyptic number.

It is an amenable number.

52444253 is a deficient number, since it is larger than the sum of its proper divisors (14527).

52444253 is an equidigital number, since it uses as much as digits as its factorization.

52444253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14526.

The product of its digits is 19200, while the sum is 29.

The square root of 52444253 is about 7241.8404428709. The cubic root of 52444253 is about 374.3110384010.

Adding to 52444253 its reverse (35244425), we get a palindrome (87688678).

The spelling of 52444253 in words is "fifty-two million, four hundred forty-four thousand, two hundred fifty-three".

Divisors: 1 6709 7817 52444253