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12240350553 = 321787187273
BaseRepresentation
bin10110110011001010…
…01110110101011001
31011121001101020022210
423121211032311121
5200032012204203
65342333105333
7612220156134
oct133145166531
934531336283
1012240350553
1152113a45a2
122457328249
131200ba90a2
1484190521b
154b98ea803
hex2d994ed59

12240350553 has 8 divisors (see below), whose sum is σ = 16321303648. Its totient is φ = 8159815584.

The previous prime is 12240350543. The next prime is 12240350569. The reversal of 12240350553 is 35505304221.

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

It is not a de Polignac number, because 12240350553 - 228 = 11971915097 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 12240350553.

It is not an unprimeable number, because it can be changed into a prime (12240350503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28276 + ... + 158997.

It is an arithmetic number, because the mean of its divisors is an integer number (2040162956).

Almost surely, 212240350553 is an apocalyptic number.

It is an amenable number.

12240350553 is a deficient number, since it is larger than the sum of its proper divisors (4080953095).

12240350553 is a wasteful number, since it uses less digits than its factorization.

12240350553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209063.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 12240350553 its reverse (35505304221), we get a palindrome (47745654774).

The spelling of 12240350553 in words is "twelve billion, two hundred forty million, three hundred fifty thousand, five hundred fifty-three".

Divisors: 1 3 21787 65361 187273 561819 4080116851 12240350553