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550315144 = 23971574517
BaseRepresentation
bin100000110011010…
…010010010001000
31102100111220110101
4200303102102020
52111340041034
6130335055144
716431413221
oct4063222210
91370456411
10550315144
11262702a05
121343714b4
138a020a82
1453132248
15334a6514
hex20cd2488

550315144 has 32 divisors (see below), whose sum is σ = 1049350680. Its totient is φ = 270526464.

The previous prime is 550315123. The next prime is 550315147. The reversal of 550315144 is 441513055.

It can be written as a sum of positive squares in 4 ways, for example, as 220166244 + 330148900 = 14838^2 + 18170^2 .

It is not an unprimeable number, because it can be changed into a prime (550315147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119574 + ... + 124090.

Almost surely, 2550315144 is an apocalyptic number.

It is an amenable number.

550315144 is a deficient number, since it is larger than the sum of its proper divisors (499035536).

550315144 is a wasteful number, since it uses less digits than its factorization.

550315144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777 (or 4773 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 550315144 is about 23458.7967295853. The cubic root of 550315144 is about 819.4777281050.

Adding to 550315144 its reverse (441513055), we get a palindrome (991828199).

The spelling of 550315144 in words is "five hundred fifty million, three hundred fifteen thousand, one hundred forty-four".

Divisors: 1 2 4 8 97 157 194 314 388 628 776 1256 4517 9034 15229 18068 30458 36136 60916 121832 438149 709169 876298 1418338 1752596 2836676 3505192 5673352 68789393 137578786 275157572 550315144