Base | Representation |
---|---|
bin | 1011100111001111100111… |
… | …0011101101101000000001 |
3 | 1200012200120222200020201021 |
4 | 2321303321303231220001 |
5 | 3133201032433333341 |
6 | 43053531000305441 |
7 | 2455342415144353 |
oct | 271637163555001 |
9 | 50180528606637 |
10 | 12768833886721 |
11 | 4083260934390 |
12 | 1522828772281 |
13 | 718132815ac3 |
14 | 32202caab0d3 |
15 | 1722300439d1 |
hex | b9cf9ceda01 |
12768833886721 has 16 divisors (see below), whose sum is σ = 14604160969728. Its totient is φ = 11050711333200.
The previous prime is 12768833886691. The next prime is 12768833886749.
12768833886721 is nontrivially palindromic in base 10.
It is not a de Polignac number, because 12768833886721 - 25 = 12768833886689 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12768833886751) 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, 119543061 + ... + 119649826.
It is an arithmetic number, because the mean of its divisors is an integer number (912760060608).
Almost surely, 212768833886721 is an apocalyptic number.
12768833886721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
12768833886721 is a deficient number, since it is larger than the sum of its proper divisors (1835327083007).
12768833886721 is a wasteful number, since it uses less digits than its factorization.
12768833886721 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 239193132.
The product of its digits is 260112384, while the sum is 70.
The spelling of 12768833886721 in words is "twelve trillion, seven hundred sixty-eight billion, eight hundred thirty-three million, eight hundred eighty-six thousand, seven hundred twenty-one".
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