Base | Representation |
---|---|
bin | 10111000111001110… |
… | …10100101001010101 |
3 | 1012000210002210022012 |
4 | 23203213110221111 |
5 | 200403104431210 |
6 | 5411144514005 |
7 | 616332650546 |
oct | 134347245125 |
9 | 35023083265 |
10 | 12408670805 |
11 | 529840a043 |
12 | 24a377b905 |
13 | 1229a2097b |
14 | 859ddc4cd |
15 | 4c9598305 |
hex | 2e39d4a55 |
12408670805 has 8 divisors (see below), whose sum is σ = 14902508544. Its totient is φ = 9918867600.
The previous prime is 12408670789. The next prime is 12408670817. The reversal of 12408670805 is 50807680421.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12408670805 - 24 = 12408670789 is a prime.
It is a super-2 number, since 2×124086708052 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001861 + ... + 1014170.
It is an arithmetic number, because the mean of its divisors is an integer number (1862813568).
Almost surely, 212408670805 is an apocalyptic number.
It is an amenable number.
12408670805 is a deficient number, since it is larger than the sum of its proper divisors (2493837739).
12408670805 is a wasteful number, since it uses less digits than its factorization.
12408670805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2017267.
The product of its (nonzero) digits is 107520, while the sum is 41.
The spelling of 12408670805 in words is "twelve billion, four hundred eight million, six hundred seventy thousand, eight hundred five".
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