Base | Representation |
---|---|
bin | 111101011010110… |
… | …010100111000101 |
3 | 2122210221102122101 |
4 | 331122302213011 |
5 | 4102242330341 |
6 | 250125432101 |
7 | 34351352326 |
oct | 7532624705 |
9 | 2583842571 |
10 | 1030433221 |
11 | 48971a804 |
12 | 24910b631 |
13 | 1356343cc |
14 | 9abd044d |
15 | 606e3831 |
hex | 3d6b29c5 |
1030433221 has 4 divisors (see below), whose sum is σ = 1031942592. Its totient is φ = 1028923852.
The previous prime is 1030433203. The next prime is 1030433227. The reversal of 1030433221 is 1223340301.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1223340301 = 20809 ⋅58789.
It is a cyclic number.
It is not a de Polignac number, because 1030433221 - 27 = 1030433093 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 (1030433227) 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, 753661 + ... + 755026.
It is an arithmetic number, because the mean of its divisors is an integer number (257985648).
Almost surely, 21030433221 is an apocalyptic number.
It is an amenable number.
1030433221 is a deficient number, since it is larger than the sum of its proper divisors (1509371).
1030433221 is an equidigital number, since it uses as much as digits as its factorization.
1030433221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1509370.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 1030433221 is about 32100.3616957816. The cubic root of 1030433221 is about 1010.0432033932.
Adding to 1030433221 its reverse (1223340301), we get a palindrome (2253773522).
The spelling of 1030433221 in words is "one billion, thirty million, four hundred thirty-three thousand, two hundred twenty-one".
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