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585053221 = 2920174249
BaseRepresentation
bin100010110111110…
…011010000100101
31111202212210010211
4202313303100211
52144233200341
6134015415421
720332604344
oct4267632045
91452783124
10585053221
1128027a165
12143b24571
139429454c
14579b5b5b
1536569181
hex22df3425

585053221 has 4 divisors (see below), whose sum is σ = 605227500. Its totient is φ = 564878944.

The previous prime is 585053219. The next prime is 585053233. The reversal of 585053221 is 122350585.

585053221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 375816996 + 209236225 = 19386^2 + 14465^2 .

It is a cyclic number.

It is not a de Polignac number, because 585053221 - 21 = 585053219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (585053201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10087096 + ... + 10087153.

It is an arithmetic number, because the mean of its divisors is an integer number (151306875).

Almost surely, 2585053221 is an apocalyptic number.

It is an amenable number.

585053221 is a deficient number, since it is larger than the sum of its proper divisors (20174279).

585053221 is a wasteful number, since it uses less digits than its factorization.

585053221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20174278.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 585053221 is about 24187.8734286419. The cubic root of 585053221 is about 836.3700224175.

The spelling of 585053221 in words is "five hundred eighty-five million, fifty-three thousand, two hundred twenty-one".

Divisors: 1 29 20174249 585053221