Base | Representation |
---|---|
bin | 10110100010110100… |
… | …11110001101001011 |
3 | 1011020111111222001100 |
4 | 23101122132031023 |
5 | 144241421442303 |
6 | 5320555552443 |
7 | 605634312333 |
oct | 132132361513 |
9 | 34214458040 |
10 | 12103312203 |
11 | 5151005664 |
12 | 241945b723 |
13 | 11ab697ac8 |
14 | 82b6320c3 |
15 | 4ac87b8a3 |
hex | 2d169e34b |
12103312203 has 6 divisors (see below), whose sum is σ = 17482562084. Its totient is φ = 8068874796.
The previous prime is 12103312171. The next prime is 12103312223. The reversal of 12103312203 is 30221330121.
It is not a de Polignac number, because 12103312203 - 25 = 12103312171 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12103312223) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 672406225 + ... + 672406242.
Almost surely, 212103312203 is an apocalyptic number.
12103312203 is a deficient number, since it is larger than the sum of its proper divisors (5379249881).
12103312203 is a wasteful number, since it uses less digits than its factorization.
12103312203 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1344812473 (or 1344812470 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 12103312203 its reverse (30221330121), we get a palindrome (42324642324).
The spelling of 12103312203 in words is "twelve billion, one hundred three million, three hundred twelve thousand, two hundred three".
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