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252424211 = 13171142191
BaseRepresentation
bin11110000101110…
…11000000010011
3122120222110220212
433002323000103
51004110033321
641014154335
76153366434
oct1702730023
9576873825
10252424211
1111a53a056
12706529ab
13403b0c50
142574b48b
151726255b
hexf0bb013

252424211 has 8 divisors (see below), whose sum is σ = 287832384. Its totient is φ = 219300480.

The previous prime is 252424187. The next prime is 252424217. The reversal of 252424211 is 112424252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252424211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252424217) 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 7 ways as a sum of consecutive naturals, for example, 570875 + ... + 571316.

It is an arithmetic number, because the mean of its divisors is an integer number (35979048).

Almost surely, 2252424211 is an apocalyptic number.

252424211 is a deficient number, since it is larger than the sum of its proper divisors (35408173).

252424211 is a wasteful number, since it uses less digits than its factorization.

252424211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142221.

The product of its digits is 1280, while the sum is 23.

The square root of 252424211 is about 15887.8636386394. The cubic root of 252424211 is about 631.9901882189.

Adding to 252424211 its reverse (112424252), we get a palindrome (364848463).

The spelling of 252424211 in words is "two hundred fifty-two million, four hundred twenty-four thousand, two hundred eleven".

Divisors: 1 13 17 221 1142191 14848483 19417247 252424211