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52244213 = 717479341
BaseRepresentation
bin1100011101001…
…0111011110101
310122022021120212
43013102323311
5101333303323
65103435205
71203032330
oct307227365
9118267525
1052244213
112754393a
12155b5b05
13aa92a48
146d1d617
1548beb78
hex31d2ef5

52244213 has 16 divisors (see below), whose sum is σ = 64571904. Its totient is φ = 41245440.

The previous prime is 52244177. The next prime is 52244239. The reversal of 52244213 is 31244225.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52244213 - 26 = 52244149 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 (52247213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (4035744).

Almost surely, 252244213 is an apocalyptic number.

It is an amenable number.

52244213 is a deficient number, since it is larger than the sum of its proper divisors (12327691).

52244213 is a wasteful number, since it uses less digits than its factorization.

52244213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9412.

The product of its digits is 1920, while the sum is 23.

The square root of 52244213 is about 7228.0158411559. The cubic root of 52244213 is about 373.8345159966.

Adding to 52244213 its reverse (31244225), we get a palindrome (83488438).

The spelling of 52244213 in words is "fifty-two million, two hundred forty-four thousand, two hundred thirteen".

Divisors: 1 7 17 47 119 329 799 5593 9341 65387 158797 439027 1111579 3073189 7463459 52244213