Base | Representation |
---|---|
bin | 11000000010010100… |
… | …11100101010110011 |
3 | 1020022022221100120100 |
4 | 30001022130222303 |
5 | 202412012333341 |
6 | 5532254243443 |
7 | 634532512554 |
oct | 140112345263 |
9 | 36268840510 |
10 | 12904417971 |
11 | 5522231245 |
12 | 26017b6583 |
13 | 12a86470a3 |
14 | 8a5ba832b |
15 | 507d713b6 |
hex | 30129cab3 |
12904417971 has 12 divisors (see below), whose sum is σ = 18645789240. Its totient is φ = 8600141760.
The previous prime is 12904417913. The next prime is 12904418003. The reversal of 12904417971 is 17971440921.
It is not a de Polignac number, because 12904417971 - 27 = 12904417843 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12904416971) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204285 + ... + 259886.
It is an arithmetic number, because the mean of its divisors is an integer number (1553815770).
Almost surely, 212904417971 is an apocalyptic number.
12904417971 is a deficient number, since it is larger than the sum of its proper divisors (5741371269).
12904417971 is a wasteful number, since it uses less digits than its factorization.
12904417971 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 467266 (or 467263 counting only the distinct ones).
The product of its (nonzero) digits is 127008, while the sum is 45.
The spelling of 12904417971 in words is "twelve billion, nine hundred four million, four hundred seventeen thousand, nine hundred seventy-one".
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