Base | Representation |
---|---|
bin | 10111011111010111… |
… | …01100101010110010 |
3 | 1012112220002111211010 |
4 | 23233223230222302 |
5 | 201311423104440 |
6 | 5443220331350 |
7 | 624341646516 |
oct | 135753545262 |
9 | 35486074733 |
10 | 12611144370 |
11 | 5391731470 |
12 | 253b543b56 |
13 | 125c962b06 |
14 | 878c66146 |
15 | 4dc240580 |
hex | 2efaecab2 |
12611144370 has 64 divisors (see below), whose sum is σ = 33030135936. Its totient is φ = 3056148480.
The previous prime is 12611144291. The next prime is 12611144389. The reversal of 12611144370 is 7344111621.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1274482 + ... + 1284338.
It is an arithmetic number, because the mean of its divisors is an integer number (516095874).
Almost surely, 212611144370 is an apocalyptic number.
12611144370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12611144370 is an abundant number, since it is smaller than the sum of its proper divisors (20418991566).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12611144370 is a wasteful number, since it uses less digits than its factorization.
12611144370 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13755.
The product of its (nonzero) digits is 4032, while the sum is 30.
Adding to 12611144370 its reverse (7344111621), we get a palindrome (19955255991).
The spelling of 12611144370 in words is "twelve billion, six hundred eleven million, one hundred forty-four thousand, three hundred seventy".
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