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5320224 = 2532721329
BaseRepresentation
bin10100010010111000100000
3101000021222100
4110102320200
52330221344
6310010400
763135600
oct24227040
911007870
105320224
113004188
121946a00
131143780
149c6c00
15701569
hex512e20

5320224 has 216 divisors, whose sum is σ = 19606860. Its totient is φ = 1354752.

The previous prime is 5320223. The next prime is 5320229. The reversal of 5320224 is 4220235.

It can be written as a sum of positive squares in 2 ways, for example, as 5143824 + 176400 = 2268^2 + 420^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 5320197 and 5320206.

It is not an unprimeable number, because it can be changed into a prime (5320223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 183442 + ... + 183470.

Almost surely, 25320224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5320224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9803430).

5320224 is an abundant number, since it is smaller than the sum of its proper divisors (14286636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5320224 is a wasteful number, since it uses less digits than its factorization.

5320224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 5320224 is about 2306.5610765813. The cubic root of 5320224 is about 174.5728247799.

Adding to 5320224 its reverse (4220235), we get a palindrome (9540459).

The spelling of 5320224 in words is "five million, three hundred twenty thousand, two hundred twenty-four".