Base | Representation |
---|---|
bin | 10111111011001001… |
… | …00000110101111101 |
3 | 1020011010112000102002 |
4 | 23331210200311331 |
5 | 202301100020244 |
6 | 5522302312045 |
7 | 633201255662 |
oct | 137544406575 |
9 | 36133460362 |
10 | 12844141949 |
11 | 54a1201a51 |
12 | 25a5588625 |
13 | 12990015c2 |
14 | 89bb97a69 |
15 | 502916a4e |
hex | 2fd920d7d |
12844141949 has 16 divisors (see below), whose sum is σ = 13664988480. Its totient is φ = 12038181120.
The previous prime is 12844141909. The next prime is 12844142029. The reversal of 12844141949 is 94914144821.
It is not a de Polignac number, because 12844141949 - 28 = 12844141693 is a prime.
It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12844141909) 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, 1220699 + ... + 1231175.
It is an arithmetic number, because the mean of its divisors is an integer number (854061780).
Almost surely, 212844141949 is an apocalyptic number.
12844141949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
It is an amenable number.
12844141949 is a deficient number, since it is larger than the sum of its proper divisors (820846531).
12844141949 is a wasteful number, since it uses less digits than its factorization.
12844141949 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11180.
The product of its digits is 331776, while the sum is 47.
The spelling of 12844141949 in words is "twelve billion, eight hundred forty-four million, one hundred forty-one thousand, nine hundred forty-nine".
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