Base | Representation |
---|---|
bin | 111101011011011… |
… | …1000101010110101 |
3 | 12022122112020011010 |
4 | 1322312320222311 |
5 | 13210132130440 |
6 | 540310502433 |
7 | 102035660325 |
oct | 17266705265 |
9 | 5278466133 |
10 | 2061208245 |
11 | 968553298 |
12 | 496364a19 |
13 | 26b058265 |
14 | 157a6d285 |
15 | c0e53580 |
hex | 7adb8ab5 |
2061208245 has 16 divisors (see below), whose sum is σ = 3309845760. Its totient is φ = 1095340224.
The previous prime is 2061208243. The next prime is 2061208249. The reversal of 2061208245 is 5428021602.
It is not a de Polignac number, because 2061208245 - 21 = 2061208243 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2061208243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243885 + ... + 252194.
It is an arithmetic number, because the mean of its divisors is an integer number (206865360).
Almost surely, 22061208245 is an apocalyptic number.
It is an amenable number.
2061208245 is a deficient number, since it is larger than the sum of its proper divisors (1248637515).
2061208245 is a wasteful number, since it uses less digits than its factorization.
2061208245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 496364.
The product of its (nonzero) digits is 7680, while the sum is 30.
The square root of 2061208245 is about 45400.5313294900. The cubic root of 2061208245 is about 1272.6450432487.
Adding to 2061208245 its reverse (5428021602), we get a palindrome (7489229847).
The spelling of 2061208245 in words is "two billion, sixty-one million, two hundred eight thousand, two hundred forty-five".
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