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557248087 = 11113448309
BaseRepresentation
bin100001001101101…
…110111001010111
31102211120010200001
4201031232321113
52120123414322
6131143432131
716544346664
oct4115567127
91384503601
10557248087
11266608810
12136755647
138b5aa5c6
1454018a6b
1533dc5827
hex2136ee57

557248087 has 8 divisors (see below), whose sum is σ = 613288080. Its totient is φ = 502104960.

The previous prime is 557248073. The next prime is 557248091. The reversal of 557248087 is 780842755.

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

It is a cyclic number.

It is not a de Polignac number, because 557248087 - 219 = 556723799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557248037) 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, 222912 + ... + 225397.

It is an arithmetic number, because the mean of its divisors is an integer number (76661010).

Almost surely, 2557248087 is an apocalyptic number.

557248087 is a deficient number, since it is larger than the sum of its proper divisors (56039993).

557248087 is a wasteful number, since it uses less digits than its factorization.

557248087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448433.

The product of its (nonzero) digits is 627200, while the sum is 46.

The square root of 557248087 is about 23606.1027490774. The cubic root of 557248087 is about 822.9046733885.

The spelling of 557248087 in words is "five hundred fifty-seven million, two hundred forty-eight thousand, eighty-seven".

Divisors: 1 11 113 1243 448309 4931399 50658917 557248087