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4227805 = 53722853
BaseRepresentation
bin10000001000001011011101
321221210110101
4100020023131
52040242210
6230341101
750635651
oct20101335
97853411
104227805
11242845a
1214ba791
13b5047a
147c0a61
15587a3a
hex4082dd

4227805 has 8 divisors (see below), whose sum is σ = 5210712. Its totient is φ = 3290688.

The previous prime is 4227793. The next prime is 4227809. The reversal of 4227805 is 5087224.

It can be written as a sum of positive squares in 4 ways, for example, as 549081 + 3678724 = 741^2 + 1918^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4227805 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 (4227809) 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, 11242 + ... + 11611.

It is an arithmetic number, because the mean of its divisors is an integer number (651339).

Almost surely, 24227805 is an apocalyptic number.

It is an amenable number.

4227805 is a deficient number, since it is larger than the sum of its proper divisors (982907).

4227805 is a wasteful number, since it uses less digits than its factorization.

4227805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22895.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4227805 is about 2056.1626881159. The cubic root of 4227805 is about 161.6981245098.

The spelling of 4227805 in words is "four million, two hundred twenty-seven thousand, eight hundred five".

Divisors: 1 5 37 185 22853 114265 845561 4227805