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52251249 = 3112915427
BaseRepresentation
bin1100011101010…
…0101001110001
310122022122020110
43013110221301
5101334014444
65103531533
71203062001
oct307245161
9118278213
1052251249
1127549156
12155b9ba9
13aa95ccb
146d22001
1548c1cb9
hex31d4a71

52251249 has 8 divisors (see below), whose sum is σ = 69734560. Its totient is φ = 34801056.

The previous prime is 52251211. The next prime is 52251253. The reversal of 52251249 is 94215225.

52251249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 52251249 - 211 = 52249201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52251209) 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, 4327 + ... + 11100.

It is an arithmetic number, because the mean of its divisors is an integer number (8716820).

Almost surely, 252251249 is an apocalyptic number.

It is an amenable number.

52251249 is a deficient number, since it is larger than the sum of its proper divisors (17483311).

52251249 is a wasteful number, since it uses less digits than its factorization.

52251249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16559.

The product of its digits is 7200, while the sum is 30.

The square root of 52251249 is about 7228.5025420207. The cubic root of 52251249 is about 373.8512973231.

The spelling of 52251249 in words is "fifty-two million, two hundred fifty-one thousand, two hundred forty-nine".

Divisors: 1 3 1129 3387 15427 46281 17417083 52251249