Base | Representation |
---|---|
bin | 111011111010001… |
… | …010111110100101 |
3 | 2121001021121221101 |
4 | 323322022332211 |
5 | 4024301330221 |
6 | 243422520101 |
7 | 33623152312 |
oct | 7372127645 |
9 | 2531247841 |
10 | 1005105061 |
11 | 4763a0344 |
12 | 240736031 |
13 | 130306a2c |
14 | 976b9d09 |
15 | 5d38dd91 |
hex | 3be8afa5 |
1005105061 has 8 divisors (see below), whose sum is σ = 1024126560. Its totient is φ = 986149872.
The previous prime is 1005104977. The next prime is 1005105067. The reversal of 1005105061 is 1605015001.
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 1005105061 - 223 = 996716453 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1005105067) 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 7 ways as a sum of consecutive naturals, for example, 14571 + ... + 47143.
It is an arithmetic number, because the mean of its divisors is an integer number (128015820).
Almost surely, 21005105061 is an apocalyptic number.
It is an amenable number.
1005105061 is a deficient number, since it is larger than the sum of its proper divisors (19021499).
1005105061 is an equidigital number, since it uses as much as digits as its factorization.
1005105061 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33155.
The product of its (nonzero) digits is 150, while the sum is 19.
The square root of 1005105061 is about 31703.3919478658. The cubic root of 1005105061 is about 1001.6987994462.
The spelling of 1005105061 in words is "one billion, five million, one hundred five thousand, sixty-one".
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