Base | Representation |
---|---|
bin | 10110101010100010… |
… | …11010010001001001 |
3 | 1011102000022202122002 |
4 | 23111101122101021 |
5 | 144410004430031 |
6 | 5331231240345 |
7 | 610351452503 |
oct | 132521322111 |
9 | 34360282562 |
10 | 12168045641 |
11 | 51845a9874 |
12 | 24370790b5 |
13 | 11bbc1140b |
14 | 836082d73 |
15 | 4b33b6ccb |
hex | 2d545a449 |
12168045641 has 8 divisors (see below), whose sum is σ = 12562980864. Its totient is φ = 11777784480.
The previous prime is 12168045563. The next prime is 12168045653. The reversal of 12168045641 is 14654086121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12168045641 - 214 = 12168029257 is a prime.
It is a super-2 number, since 2×121680456412 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12168045595 and 12168045604.
It is not an unprimeable number, because it can be changed into a prime (12168045691) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163225 + ... + 1173638.
It is an arithmetic number, because the mean of its divisors is an integer number (1570372608).
Almost surely, 212168045641 is an apocalyptic number.
It is an amenable number.
12168045641 is a deficient number, since it is larger than the sum of its proper divisors (394935223).
12168045641 is a wasteful number, since it uses less digits than its factorization.
12168045641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2337031.
The product of its (nonzero) digits is 46080, while the sum is 38.
The spelling of 12168045641 in words is "twelve billion, one hundred sixty-eight million, forty-five thousand, six hundred forty-one".
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