Base | Representation |
---|---|
bin | 10111110111011010… |
… | …10010100100101001 |
3 | 1020001221201011112210 |
4 | 23323231102210221 |
5 | 202220044411421 |
6 | 5515224355333 |
7 | 632341516440 |
oct | 137355224451 |
9 | 36057634483 |
10 | 12812888361 |
11 | 54855a5739 |
12 | 2597015b49 |
13 | 12926aab60 |
14 | 89797dd57 |
15 | 4eece1576 |
hex | 2fbb52929 |
12812888361 has 16 divisors (see below), whose sum is σ = 21026278784. Its totient is φ = 6758446464.
The previous prime is 12812888357. The next prime is 12812888377. The reversal of 12812888361 is 16388821821.
It is not a de Polignac number, because 12812888361 - 22 = 12812888357 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12812888361.
It is not an unprimeable number, because it can be changed into a prime (12812388361) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23466556 + ... + 23467101.
It is an arithmetic number, because the mean of its divisors is an integer number (1314142424).
Almost surely, 212812888361 is an apocalyptic number.
It is an amenable number.
12812888361 is a deficient number, since it is larger than the sum of its proper divisors (8213390423).
12812888361 is a wasteful number, since it uses less digits than its factorization.
12812888361 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46933680.
The product of its digits is 294912, while the sum is 48.
The spelling of 12812888361 in words is "twelve billion, eight hundred twelve million, eight hundred eighty-eight thousand, three hundred sixty-one".
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