Base | Representation |
---|---|
bin | 1000010100101… |
… | …01011011000001 |
3 | 11212101010100200 |
4 | 10022111123001 |
5 | 120333134144 |
6 | 10532235413 |
7 | 1505305110 |
oct | 412253301 |
9 | 155333320 |
10 | 69818049 |
11 | 36457374 |
12 | 1b46bb69 |
13 | 11606a72 |
14 | 93b5c77 |
15 | 61e1c69 |
hex | 42956c1 |
69818049 has 12 divisors (see below), whose sum is σ = 115255296. Its totient is φ = 39895992.
The previous prime is 69818017. The next prime is 69818059. The reversal of 69818049 is 94081896.
It is not a de Polignac number, because 69818049 - 25 = 69818017 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 69817995 and 69818013.
It is not an unprimeable number, because it can be changed into a prime (69818059) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 554049 + ... + 554174.
It is an arithmetic number, because the mean of its divisors is an integer number (9604608).
Almost surely, 269818049 is an apocalyptic number.
It is an amenable number.
69818049 is a deficient number, since it is larger than the sum of its proper divisors (45437247).
69818049 is a wasteful number, since it uses less digits than its factorization.
69818049 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1108236 (or 1108233 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 45.
The square root of 69818049 is about 8355.7195381367. The cubic root of 69818049 is about 411.7711382497.
The spelling of 69818049 in words is "sixty-nine million, eight hundred eighteen thousand, forty-nine".
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