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52444217 = 77492031
BaseRepresentation
bin1100100000001…
…1110000111001
310122200102221102
43020003300321
5101411203332
65112021145
71204524410
oct310036071
9118612842
1052444217
1127670131
12156917b5
13ab32aa7
146d72477
15490e062
hex3203c39

52444217 has 4 divisors (see below), whose sum is σ = 59936256. Its totient is φ = 44952180.

The previous prime is 52444211. The next prime is 52444243. The reversal of 52444217 is 71244425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52444217 - 26 = 52444153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52444217.

It is not an unprimeable number, because it can be changed into a prime (52444211) 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 3 ways as a sum of consecutive naturals, for example, 3746009 + ... + 3746022.

It is an arithmetic number, because the mean of its divisors is an integer number (14984064).

Almost surely, 252444217 is an apocalyptic number.

It is an amenable number.

52444217 is a deficient number, since it is larger than the sum of its proper divisors (7492039).

52444217 is an equidigital number, since it uses as much as digits as its factorization.

52444217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7492038.

The product of its digits is 8960, while the sum is 29.

The square root of 52444217 is about 7241.8379573144. The cubic root of 52444217 is about 374.3109527533.

The spelling of 52444217 in words is "fifty-two million, four hundred forty-four thousand, two hundred seventeen".

Divisors: 1 7 7492031 52444217