Base | Representation |
---|---|
bin | 10110100101001100… |
… | …00101010100010001 |
3 | 1011021212210222100101 |
4 | 23102212011110101 |
5 | 144312010230301 |
6 | 5322544452401 |
7 | 606264634444 |
oct | 132246052421 |
9 | 34255728311 |
10 | 12123133201 |
11 | 5161213453 |
12 | 242401a101 |
13 | 11b28178ca |
14 | 83011165b |
15 | 4ae494701 |
hex | 2d2985511 |
12123133201 has 8 divisors (see below), whose sum is σ = 12160623104. Its totient is φ = 12085698960.
The previous prime is 12123133153. The next prime is 12123133223. The reversal of 12123133201 is 10233132121.
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 12123133201 - 225 = 12089578769 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12123133601) 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, 445456 + ... + 471886.
It is an arithmetic number, because the mean of its divisors is an integer number (1520077888).
Almost surely, 212123133201 is an apocalyptic number.
It is an amenable number.
12123133201 is a deficient number, since it is larger than the sum of its proper divisors (37489903).
12123133201 is an equidigital number, since it uses as much as digits as its factorization.
12123133201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27831.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 12123133201 its reverse (10233132121), we get a palindrome (22356265322).
The spelling of 12123133201 in words is "twelve billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred one".
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