Base | Representation |
---|---|
bin | 10111010011011110… |
… | …00001100101110001 |
3 | 1012021221022121001220 |
4 | 23221233001211301 |
5 | 201110401300301 |
6 | 5425253415253 |
7 | 622020514254 |
oct | 135157014561 |
9 | 35257277056 |
10 | 12511353201 |
11 | 5340372926 |
12 | 251203a529 |
13 | 1245093399 |
14 | 8698cb09b |
15 | 4d35cc936 |
hex | 2e9bc1971 |
12511353201 has 16 divisors (see below), whose sum is σ = 17669332224. Its totient is φ = 7847485184.
The previous prime is 12511353199. The next prime is 12511353221. The reversal of 12511353201 is 10235311521.
It is a cyclic number.
It is not a de Polignac number, because 12511353201 - 21 = 12511353199 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12511353221) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107371 + ... + 191183.
It is an arithmetic number, because the mean of its divisors is an integer number (1104333264).
Almost surely, 212511353201 is an apocalyptic number.
It is an amenable number.
12511353201 is a deficient number, since it is larger than the sum of its proper divisors (5157979023).
12511353201 is a wasteful number, since it uses less digits than its factorization.
12511353201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86760.
The product of its (nonzero) digits is 900, while the sum is 24.
Adding to 12511353201 its reverse (10235311521), we get a palindrome (22746664722).
The spelling of 12511353201 in words is "twelve billion, five hundred eleven million, three hundred fifty-three thousand, two hundred one".
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