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12240644611 = 131669564163
BaseRepresentation
bin10110110011001100…
…10110101000000011
31011121001221011200211
423121212112220003
5200032101111421
65342343254551
7612222522346
oct133146265003
934531834624
1012240644611
115211585518
12245744a457
131200c7cba0
1484198045d
154b99579e1
hex2d9996a03

12240644611 has 8 divisors (see below), whose sum is σ = 13190154320. Its totient is φ = 11292266592.

The previous prime is 12240644567. The next prime is 12240644617. The reversal of 12240644611 is 11644604221.

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-12240644611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12240644617) 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, 260385 + ... + 303778.

It is an arithmetic number, because the mean of its divisors is an integer number (1648769290).

Almost surely, 212240644611 is an apocalyptic number.

12240644611 is a deficient number, since it is larger than the sum of its proper divisors (949509709).

12240644611 is a wasteful number, since it uses less digits than its factorization.

12240644611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565845.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 12240644611 in words is "twelve billion, two hundred forty million, six hundred forty-four thousand, six hundred eleven".

Divisors: 1 13 1669 21697 564163 7334119 941588047 12240644611