Base | Representation |
---|---|
bin | 1000010101111… |
… | …01000000110011 |
3 | 11212200100210200 |
4 | 10022331000303 |
5 | 120403331321 |
6 | 10535530243 |
7 | 1506551640 |
oct | 412750063 |
9 | 155610720 |
10 | 69980211 |
11 | 36558194 |
12 | 1b529983 |
13 | 11662812 |
14 | 9418dc7 |
15 | 6224d26 |
hex | 42bd033 |
69980211 has 72 divisors (see below), whose sum is σ = 129808224. Its totient is φ = 35458560.
The previous prime is 69980201. The next prime is 69980213. The reversal of 69980211 is 11208996.
It is not a de Polignac number, because 69980211 - 25 = 69980179 is a prime.
It is not an unprimeable number, because it can be changed into a prime (69980213) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 386541 + ... + 386721.
It is an arithmetic number, because the mean of its divisors is an integer number (1802892).
Almost surely, 269980211 is an apocalyptic number.
69980211 is a deficient number, since it is larger than the sum of its proper divisors (59828013).
69980211 is a wasteful number, since it uses less digits than its factorization.
69980211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 249 (or 227 counting only the distinct ones).
The product of its (nonzero) digits is 7776, while the sum is 36.
The square root of 69980211 is about 8365.4175627998. The cubic root of 69980211 is about 412.0896900755.
The spelling of 69980211 in words is "sixty-nine million, nine hundred eighty thousand, two hundred eleven".
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