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557486490 = 235111689353
BaseRepresentation
bin100001001110101…
…001000110011010
31102212000020200210
4201032221012122
52120204031430
6131152511550
716546362021
oct4116510632
91385006623
10557486490
11266760940
1213684b5b6
138b661c82
145407b8b8
1533e212b0
hex213a919a

557486490 has 32 divisors (see below), whose sum is σ = 1459601856. Its totient is φ = 135148160.

The previous prime is 557486453. The next prime is 557486497. The reversal of 557486490 is 94684755.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (557486497) 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 15 ways as a sum of consecutive naturals, for example, 844347 + ... + 845006.

It is an arithmetic number, because the mean of its divisors is an integer number (45612558).

Almost surely, 2557486490 is an apocalyptic number.

557486490 is an abundant number, since it is smaller than the sum of its proper divisors (902115366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557486490 is a wasteful number, since it uses less digits than its factorization.

557486490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689374.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 557486490 is about 23611.1518143440. The cubic root of 557486490 is about 823.0220089026.

The spelling of 557486490 in words is "five hundred fifty-seven million, four hundred eighty-six thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 1689353 3378706 5068059 8446765 10136118 16893530 18582883 25340295 37165766 50680590 55748649 92914415 111497298 185828830 278743245 557486490