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553449443 = 5095212087
BaseRepresentation
bin100000111111001…
…111011111100011
31102120102010220112
4200333033133203
52113140340233
6130530201535
716500146141
oct4077173743
91376363815
10553449443
11264453838
121354232ab
138a87a5a1
145370a591
15338c5048
hex20fcf7e3

553449443 has 8 divisors (see below), whose sum is σ = 555867360. Its totient is φ = 551037760.

The previous prime is 553449409. The next prime is 553449493. The reversal of 553449443 is 344944355.

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 553449443 - 28 = 553449187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 553449443.

It is not an unprimeable number, because it can be changed into a prime (553449493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264146 + ... + 266232.

It is an arithmetic number, because the mean of its divisors is an integer number (69483420).

Almost surely, 2553449443 is an apocalyptic number.

553449443 is a deficient number, since it is larger than the sum of its proper divisors (2417917).

553449443 is a wasteful number, since it uses less digits than its factorization.

553449443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117.

The product of its digits is 518400, while the sum is 41.

The square root of 553449443 is about 23525.5062219711. The cubic root of 553449443 is about 821.0305519006.

The spelling of 553449443 in words is "five hundred fifty-three million, four hundred forty-nine thousand, four hundred forty-three".

Divisors: 1 509 521 2087 265189 1062283 1087327 553449443