Base | Representation |
---|---|
bin | 101111111001000… |
… | …0110011110100001 |
3 | 11010222210111101121 |
4 | 1133302012132201 |
5 | 11242341003444 |
6 | 423242532241 |
7 | 54552004354 |
oct | 13762063641 |
9 | 4128714347 |
10 | 1606969249 |
11 | 755101866 |
12 | 38a207081 |
13 | 1c7c05ca2 |
14 | 1135ca29b |
15 | 96129084 |
hex | 5fc867a1 |
1606969249 has 2 divisors, whose sum is σ = 1606969250. Its totient is φ = 1606969248.
The previous prime is 1606969207. The next prime is 1606969283. The reversal of 1606969249 is 9429696061.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1178686224 + 428283025 = 34332^2 + 20695^2 .
It is an emirp because it is prime and its reverse (9429696061) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1606969249 - 227 = 1472751521 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1606969196 and 1606969205.
It is not a weakly prime, because it can be changed into another prime (1606960249) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803484624 + 803484625.
It is an arithmetic number, because the mean of its divisors is an integer number (803484625).
Almost surely, 21606969249 is an apocalyptic number.
It is an amenable number.
1606969249 is a deficient number, since it is larger than the sum of its proper divisors (1).
1606969249 is an equidigital number, since it uses as much as digits as its factorization.
1606969249 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1259712, while the sum is 52.
The square root of 1606969249 is about 40087.0209544187. The cubic root of 1606969249 is about 1171.3028195703.
The spelling of 1606969249 in words is "one billion, six hundred six million, nine hundred sixty-nine thousand, two hundred forty-nine".
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