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57244217249 = 1731310758169
BaseRepresentation
bin110101010100000001…
…010110111110100001
312110202110002112111102
4311110001112332201
51414214004422444
642144142124145
74064364550442
oct652401267641
9173673075442
1057244217249
112230596075a
12b116b80655
1355238421cb
142ab089d2c9
15175084e84e
hexd54056fa1

57244217249 has 8 divisors (see below), whose sum is σ = 60805176840. Its totient is φ = 53704774656.

The previous prime is 57244217231. The next prime is 57244217297. The reversal of 57244217249 is 94271244275.

It can be written as a sum of positive squares in 4 ways, for example, as 1037290849 + 56206926400 = 32207^2 + 237080^2 .

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-57244217249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57244217449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5373764 + ... + 5384405.

It is an arithmetic number, because the mean of its divisors is an integer number (7600647105).

Almost surely, 257244217249 is an apocalyptic number.

It is an amenable number.

57244217249 is a deficient number, since it is larger than the sum of its proper divisors (3560959591).

57244217249 is a wasteful number, since it uses less digits than its factorization.

57244217249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10758499.

The product of its digits is 1128960, while the sum is 47.

The spelling of 57244217249 in words is "fifty-seven billion, two hundred forty-four million, two hundred seventeen thousand, two hundred forty-nine".

Divisors: 1 17 313 5321 10758169 182888873 3367306897 57244217249