Base | Representation |
---|---|
bin | 1110100100010… |
… | …11101100001001 |
3 | 22111221202110122 |
4 | 13102023230021 |
5 | 222241110420 |
6 | 20043153025 |
7 | 3012512405 |
oct | 722135411 |
9 | 274852418 |
10 | 122206985 |
11 | 62a89a0a |
12 | 34b15775 |
13 | 1c41a634 |
14 | 12332105 |
15 | aade725 |
hex | 748bb09 |
122206985 has 8 divisors (see below), whose sum is σ = 147994440. Its totient is φ = 96868224.
The previous prime is 122206949. The next prime is 122207047. The reversal of 122206985 is 589602221.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 2676496 + 119530489 = 1636^2 + 10933^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 122206985 - 26 = 122206921 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111572 + ... + 112661.
It is an arithmetic number, because the mean of its divisors is an integer number (18499305).
Almost surely, 2122206985 is an apocalyptic number.
It is an amenable number.
122206985 is a deficient number, since it is larger than the sum of its proper divisors (25787455).
122206985 is a wasteful number, since it uses less digits than its factorization.
122206985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 224347.
The product of its (nonzero) digits is 17280, while the sum is 35.
The square root of 122206985 is about 11054.7268170679. The cubic root of 122206985 is about 496.2478938296.
The spelling of 122206985 in words is "one hundred twenty-two million, two hundred six thousand, nine hundred eighty-five".
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