Base | Representation |
---|---|
bin | 100000001100001011… |
… | …0100101110111011101 |
3 | 20121102122121220100020 |
4 | 1000120112211313131 |
5 | 2113033240132224 |
6 | 51431302022353 |
7 | 4665025514520 |
oct | 1003026456735 |
9 | 217378556306 |
10 | 69128052189 |
11 | 27353a8a849 |
12 | 11492a179b9 |
13 | 66988c34c1 |
14 | 34bacbcbb7 |
15 | 1be8cc5c79 |
hex | 10185a5ddd |
69128052189 has 8 divisors (see below), whose sum is σ = 105337984320. Its totient is φ = 39501744096.
The previous prime is 69128052157. The next prime is 69128052193. The reversal of 69128052189 is 98125082196.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 69128052189 - 25 = 69128052157 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69128052199) 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, 1645905984 + ... + 1645906025.
It is an arithmetic number, because the mean of its divisors is an integer number (13167248040).
Almost surely, 269128052189 is an apocalyptic number.
It is an amenable number.
69128052189 is a deficient number, since it is larger than the sum of its proper divisors (36209932131).
69128052189 is a wasteful number, since it uses less digits than its factorization.
69128052189 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3291812019.
The product of its (nonzero) digits is 622080, while the sum is 51.
The spelling of 69128052189 in words is "sixty-nine billion, one hundred twenty-eight million, fifty-two thousand, one hundred eighty-nine".
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