Base | Representation |
---|---|
bin | 10110101110011111… |
… | …11000111001100110 |
3 | 1011111022201020120202 |
4 | 23113033320321212 |
5 | 144442001420004 |
6 | 5334414030502 |
7 | 611233333214 |
oct | 132717707146 |
9 | 34438636522 |
10 | 12201201254 |
11 | 51a1295100 |
12 | 24461a8432 |
13 | 11c5a4c818 |
14 | 83a633cb4 |
15 | 4b6265b1e |
hex | 2d73f8e66 |
12201201254 has 24 divisors (see below), whose sum is σ = 20160678384. Its totient is φ = 5533919600.
The previous prime is 12201201241. The next prime is 12201201263. The reversal of 12201201254 is 45210210221.
It is a super-2 number, since 2×122012012542 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56879 + ... + 166245.
It is an arithmetic number, because the mean of its divisors is an integer number (840028266).
Almost surely, 212201201254 is an apocalyptic number.
12201201254 is a deficient number, since it is larger than the sum of its proper divisors (7959477130).
12201201254 is a wasteful number, since it uses less digits than its factorization.
12201201254 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 109852 (or 109841 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 20.
Adding to 12201201254 its reverse (45210210221), we get a palindrome (57411411475).
The spelling of 12201201254 in words is "twelve billion, two hundred one million, two hundred one thousand, two hundred fifty-four".
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