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557542349 = 7136126839
BaseRepresentation
bin100001001110110…
…110101111001101
31102212010002022122
4201032312233031
52120212323344
6131154022325
716550013620
oct4116665715
91385102278
10557542349
11266799901
121368779a5
138b681520
1454093db7
1533e32aee
hex213b6bcd

557542349 has 8 divisors (see below), whose sum is σ = 686206080. Its totient is φ = 441132336.

The previous prime is 557542301. The next prime is 557542357. The reversal of 557542349 is 943245755.

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 557542349 - 28 = 557542093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557542849) 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, 3063329 + ... + 3063510.

It is an arithmetic number, because the mean of its divisors is an integer number (85775760).

Almost surely, 2557542349 is an apocalyptic number.

It is an amenable number.

557542349 is a deficient number, since it is larger than the sum of its proper divisors (128663731).

557542349 is a wasteful number, since it uses less digits than its factorization.

557542349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6126859.

The product of its digits is 756000, while the sum is 44.

The square root of 557542349 is about 23612.3346791460. The cubic root of 557542349 is about 823.0494963556.

The spelling of 557542349 in words is "five hundred fifty-seven million, five hundred forty-two thousand, three hundred forty-nine".

Divisors: 1 7 13 91 6126839 42887873 79648907 557542349