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550344145 = 51317229297
BaseRepresentation
bin100000110011011…
…001010111010001
31102100120101020111
4200303121113101
52111342003040
6130335441321
716431563611
oct4063312721
91370511214
10550344145
1126272277a
12134386241
138a031030
145313ca41
15334aedea
hex20cd95d1

550344145 has 24 divisors (see below), whose sum is σ = 755536824. Its totient is φ = 382488576.

The previous prime is 550344131. The next prime is 550344163. The reversal of 550344145 is 541443055.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 36687249 + 513656896 = 6057^2 + 22664^2 .

It is not a de Polignac number, because 550344145 - 213 = 550335953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4137 + ... + 33433.

It is an arithmetic number, because the mean of its divisors is an integer number (31480701).

Almost surely, 2550344145 is an apocalyptic number.

It is an amenable number.

550344145 is a deficient number, since it is larger than the sum of its proper divisors (205192679).

550344145 is a wasteful number, since it uses less digits than its factorization.

550344145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29349 (or 29332 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 550344145 is about 23459.4148477749. The cubic root of 550344145 is about 819.4921230424.

The spelling of 550344145 in words is "five hundred fifty million, three hundred forty-four thousand, one hundred forty-five".

Divisors: 1 5 13 17 65 85 221 289 1105 1445 3757 18785 29297 146485 380861 498049 1904305 2490245 6474637 8466833 32373185 42334165 110068829 550344145