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12130045243 = 472161119429
BaseRepresentation
bin10110100110000000…
…11100110100111011
31011022100211010212221
423103000130310323
5144320242421433
65323352544511
7606410453251
oct132300346473
934270733787
1012130045243
115165104588
1224263b2137
1311b4097a84
14830dd05d1
154aedac72d
hex2d301cd3b

12130045243 has 8 divisors (see below), whose sum is σ = 12393967680. Its totient is φ = 11866366080.

The previous prime is 12130045231. The next prime is 12130045247. The reversal of 12130045243 is 34254003121.

12130045243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-12130045243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12130045247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41853 + ... + 161281.

It is an arithmetic number, because the mean of its divisors is an integer number (1549245960).

Almost surely, 212130045243 is an apocalyptic number.

12130045243 is a deficient number, since it is larger than the sum of its proper divisors (263922437).

12130045243 is a wasteful number, since it uses less digits than its factorization.

12130045243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121637.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 12130045243 its reverse (34254003121), we get a palindrome (46384048364).

The spelling of 12130045243 in words is "twelve billion, one hundred thirty million, forty-five thousand, two hundred forty-three".

Divisors: 1 47 2161 101567 119429 5613163 258086069 12130045243