Base | Representation |
---|---|
bin | 111101011001110… |
… | …001111000101001 |
3 | 2122210102221222021 |
4 | 331121301320221 |
5 | 4102210334410 |
6 | 250120024441 |
7 | 34346166361 |
oct | 7531617051 |
9 | 2583387867 |
10 | 1030168105 |
11 | 4895595aa |
12 | 249002121 |
13 | 135570835 |
14 | 9ab619a1 |
15 | 6068eeda |
hex | 3d671e29 |
1030168105 has 4 divisors (see below), whose sum is σ = 1236201732. Its totient is φ = 824134480.
The previous prime is 1030168103. The next prime is 1030168123. The reversal of 1030168105 is 5018610301.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 629407744 + 400760361 = 25088^2 + 20019^2 .
It is not a de Polignac number, because 1030168105 - 21 = 1030168103 is a prime.
It is a super-2 number, since 2×10301681052 = 2122492649118582050, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1030168105.
It is not an unprimeable number, because it can be changed into a prime (1030168103) 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 in 3 ways as a sum of consecutive naturals, for example, 103016806 + ... + 103016815.
It is an arithmetic number, because the mean of its divisors is an integer number (309050433).
Almost surely, 21030168105 is an apocalyptic number.
It is an amenable number.
1030168105 is a deficient number, since it is larger than the sum of its proper divisors (206033627).
1030168105 is an equidigital number, since it uses as much as digits as its factorization.
1030168105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 206033626.
The product of its (nonzero) digits is 720, while the sum is 25.
The square root of 1030168105 is about 32096.2319439525. The cubic root of 1030168105 is about 1009.9565726516.
Adding to 1030168105 its reverse (5018610301), we get a palindrome (6048778406).
The spelling of 1030168105 in words is "one billion, thirty million, one hundred sixty-eight thousand, one hundred five".
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