Base | Representation |
---|---|
bin | 10110111010100001… |
… | …11010000000001001 |
3 | 1011202100122000110020 |
4 | 23131100322000021 |
5 | 200143321144314 |
6 | 5352421211053 |
7 | 613600250514 |
oct | 133520720011 |
9 | 34670560406 |
10 | 12302131209 |
11 | 5243261295 |
12 | 2473b60a89 |
13 | 121092a6a4 |
14 | 849bc7d7b |
15 | 4c0050da9 |
hex | 2dd43a009 |
12302131209 has 16 divisors (see below), whose sum is σ = 17966603520. Its totient is φ = 7452811520.
The previous prime is 12302131159. The next prime is 12302131249. The reversal of 12302131209 is 90213120321.
It is a cyclic number.
It is not a de Polignac number, because 12302131209 - 219 = 12301606921 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12302131249) 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, 4157457 + ... + 4160414.
It is an arithmetic number, because the mean of its divisors is an integer number (1122912720).
Almost surely, 212302131209 is an apocalyptic number.
It is an amenable number.
12302131209 is a deficient number, since it is larger than the sum of its proper divisors (5664472311).
12302131209 is a wasteful number, since it uses less digits than its factorization.
12302131209 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8317920.
The product of its (nonzero) digits is 648, while the sum is 24.
The spelling of 12302131209 in words is "twelve billion, three hundred two million, one hundred thirty-one thousand, two hundred nine".
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