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560020321 = 7611311523
BaseRepresentation
bin100001011000010…
…011101101100001
31110000202222110101
4201120103231201
52121331122241
6131323102401
716610044210
oct4130235541
91400688411
10560020321
11268131613
12137671a01
138c03b393
145453b077
1534271e31
hex21613b61

560020321 has 8 divisors (see below), whose sum is σ = 650515904. Its totient is φ = 472147920.

The previous prime is 560020291. The next prime is 560020327. The reversal of 560020321 is 123020065.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 560020321 - 25 = 560020289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (560020327) 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 7 ways as a sum of consecutive naturals, for example, 655335 + ... + 656188.

It is an arithmetic number, because the mean of its divisors is an integer number (81314488).

Almost surely, 2560020321 is an apocalyptic number.

It is an amenable number.

560020321 is a deficient number, since it is larger than the sum of its proper divisors (90495583).

560020321 is a wasteful number, since it uses less digits than its factorization.

560020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311591.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 560020321 is about 23664.7484879937. The cubic root of 560020321 is about 824.2670299171.

Adding to 560020321 its reverse (123020065), we get a palindrome (683040386).

It can be divided in two parts, 5600 and 20321, that added together give a square (25921 = 1612).

The spelling of 560020321 in words is "five hundred sixty million, twenty thousand, three hundred twenty-one".

Divisors: 1 7 61 427 1311523 9180661 80002903 560020321