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550481243 = 13197928211
BaseRepresentation
bin100000110011111…
…010110101011011
31102100211100022012
4200303322311123
52111410344433
6130342420135
716433004404
oct4063726533
91370740265
10550481243
11262806784
1213443164b
138a07b560
14531769ab
15334da848
hex20cfad5b

550481243 has 16 divisors (see below), whose sum is σ = 631948800. Its totient is φ = 475282080.

The previous prime is 550481231. The next prime is 550481251. The reversal of 550481243 is 342184055.

It is not a de Polignac number, because 550481243 - 216 = 550415707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550481143) 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 15 ways as a sum of consecutive naturals, for example, 5408 + ... + 33618.

It is an arithmetic number, because the mean of its divisors is an integer number (39496800).

Almost surely, 2550481243 is an apocalyptic number.

550481243 is a deficient number, since it is larger than the sum of its proper divisors (81467557).

550481243 is a wasteful number, since it uses less digits than its factorization.

550481243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28322.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 550481243 is about 23462.3366909607. The cubic root of 550481243 is about 819.5601661653.

The spelling of 550481243 in words is "five hundred fifty million, four hundred eighty-one thousand, two hundred forty-three".

Divisors: 1 13 19 79 247 1027 1501 19513 28211 366743 536009 2228669 6968117 28972697 42344711 550481243