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12115660241 = 611283154807
BaseRepresentation
bin10110100100010011…
…00100110111010001
31011021100202022101002
423102021210313101
5144303102111431
65322120351345
7606144261416
oct132211446721
934240668332
1012115660241
115157a79953
122421615555
1311b10cc339
1482d12810d
154ad9ba3cb
hex2d2264dd1

12115660241 has 8 divisors (see below), whose sum is σ = 12323955264. Its totient is φ = 11907677520.

The previous prime is 12115660237. The next prime is 12115660243. The reversal of 12115660241 is 14206651121.

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 12115660241 - 22 = 12115660237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12115660243) 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, 860 + ... + 155666.

It is an arithmetic number, because the mean of its divisors is an integer number (1540494408).

Almost surely, 212115660241 is an apocalyptic number.

It is an amenable number.

12115660241 is a deficient number, since it is larger than the sum of its proper divisors (208295023).

12115660241 is a wasteful number, since it uses less digits than its factorization.

12115660241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156151.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 12115660241 in words is "twelve billion, one hundred fifteen million, six hundred sixty thousand, two hundred forty-one".

Divisors: 1 61 1283 78263 154807 9443227 198617381 12115660241