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224022805 = 561212041
BaseRepresentation
bin11010101101001…
…01000100010101
3120121112112111221
431112211010111
5424322212210
634121330341
75360106466
oct1526450425
9517475457
10224022805
11105500716
12630369b1
1337548796
1421a76d6d
1514a021da
hexd5a5115

224022805 has 12 divisors (see below), whose sum is σ = 273329316. Its totient is φ = 176265600.

The previous prime is 224022803. The next prime is 224022809. The reversal of 224022805 is 508220422.

It can be written as a sum of positive squares in 6 ways, for example, as 72880369 + 151142436 = 8537^2 + 12294^2 .

It is not a de Polignac number, because 224022805 - 21 = 224022803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224022805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224022803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12585 + ... + 24625.

It is an arithmetic number, because the mean of its divisors is an integer number (22777443).

Almost surely, 2224022805 is an apocalyptic number.

It is an amenable number.

224022805 is a deficient number, since it is larger than the sum of its proper divisors (49306511).

224022805 is an equidigital number, since it uses as much as digits as its factorization.

224022805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12168 (or 12107 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 224022805 is about 14967.3913892836. The cubic root of 224022805 is about 607.3384036197.

The spelling of 224022805 in words is "two hundred twenty-four million, twenty-two thousand, eight hundred five".

Divisors: 1 5 61 305 3721 12041 18605 60205 734501 3672505 44804561 224022805