Base | Representation |
---|---|
bin | 100100000100011… |
… | …1100011001101001 |
3 | 10010100101211002222 |
4 | 1020020330121221 |
5 | 4434314212410 |
6 | 320033003425 |
7 | 41664262253 |
oct | 11010743151 |
9 | 3110354088 |
10 | 1210304105 |
11 | 57120442a |
12 | 2993b3575 |
13 | 16399159a |
14 | b6a52cd3 |
15 | 713c3955 |
hex | 4823c669 |
1210304105 has 8 divisors (see below), whose sum is σ = 1454817672. Its totient is φ = 966608128.
The previous prime is 1210304099. The next prime is 1210304107. The reversal of 1210304105 is 5014030121.
It can be written as a sum of positive squares in 4 ways, for example, as 441462121 + 768841984 = 21011^2 + 27728^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1210304105 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1210304107) by changing a digit.
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, 201134 + ... + 207063.
It is an arithmetic number, because the mean of its divisors is an integer number (181852209).
Almost surely, 21210304105 is an apocalyptic number.
It is an amenable number.
1210304105 is a deficient number, since it is larger than the sum of its proper divisors (244513567).
1210304105 is an equidigital number, since it uses as much as digits as its factorization.
1210304105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 408795.
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 1210304105 is about 34789.4251892727. The cubic root of 1210304105 is about 1065.6915006300.
Adding to 1210304105 its reverse (5014030121), we get a palindrome (6224334226).
The spelling of 1210304105 in words is "one billion, two hundred ten million, three hundred four thousand, one hundred five".
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