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4284805 = 57217489
BaseRepresentation
bin10000010110000110000101
322001200122111
4100112012011
52044103210
6231501021
751264100
oct20260605
98050574
104284805
112467268
121527771
13b703b5
147d7737
1559988a
hex416185

4284805 has 12 divisors (see below), whose sum is σ = 5981580. Its totient is φ = 2937984.

The previous prime is 4284743. The next prime is 4284809. The reversal of 4284805 is 5084824.

It can be written as a sum of positive squares in 2 ways, for example, as 470596 + 3814209 = 686^2 + 1953^2 .

It is not a de Polignac number, because 4284805 - 27 = 4284677 is a prime.

4284805 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4284809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8500 + ... + 8989.

It is an arithmetic number, because the mean of its divisors is an integer number (498465).

Almost surely, 24284805 is an apocalyptic number.

It is an amenable number.

4284805 is a deficient number, since it is larger than the sum of its proper divisors (1696775).

4284805 is a wasteful number, since it uses less digits than its factorization.

4284805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17508 (or 17501 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 4284805 is about 2069.9770530129. The cubic root of 4284805 is about 162.4215637240.

The spelling of 4284805 in words is "four million, two hundred eighty-four thousand, eight hundred five".

Divisors: 1 5 7 35 49 245 17489 87445 122423 612115 856961 4284805