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550054218 = 23719689291
BaseRepresentation
bin100000110010010…
…010100101001010
31102100000122112110
4200302102211022
52111303213333
6130325323150
716426245420
oct4062224512
91370018473
10550054218
1126254496a
121342664b6
1389c5c08c
14530a5110
1533454063
hex20c9294a

550054218 has 32 divisors (see below), whose sum is σ = 1323440640. Its totient is φ = 148886640.

The previous prime is 550054217. The next prime is 550054231. The reversal of 550054218 is 812450055.

It is not an unprimeable number, because it can be changed into a prime (550054213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343848 + ... + 345443.

It is an arithmetic number, because the mean of its divisors is an integer number (41357520).

Almost surely, 2550054218 is an apocalyptic number.

550054218 is an abundant number, since it is smaller than the sum of its proper divisors (773386422).

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

550054218 is a wasteful number, since it uses less digits than its factorization.

550054218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689322.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 550054218 is about 23453.2347022751. The cubic root of 550054218 is about 819.3481921164.

The spelling of 550054218 in words is "five hundred fifty million, fifty-four thousand, two hundred eighteen".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 689291 1378582 2067873 4135746 4825037 9650074 13096529 14475111 26193058 28950222 39289587 78579174 91675703 183351406 275027109 550054218