Base | Representation |
---|---|
bin | 111101011100001… |
… | …010100000000101 |
3 | 2122211121201110201 |
4 | 331130022200011 |
5 | 4102340340341 |
6 | 250141250501 |
7 | 34354412023 |
oct | 7534124005 |
9 | 2584551421 |
10 | 1030793221 |
11 | 489946227 |
12 | 249263a31 |
13 | 13572c223 |
14 | 9ac85713 |
15 | 60765331 |
hex | 3d70a805 |
1030793221 has 4 divisors (see below), whose sum is σ = 1033120512. Its totient is φ = 1028465932.
The previous prime is 1030793207. The next prime is 1030793251. The reversal of 1030793221 is 1223970301.
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: 1223970301 = 17 ⋅71998253.
It is a cyclic number.
It is not a de Polignac number, because 1030793221 - 215 = 1030760453 is a prime.
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 1030793221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030793201) 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 3 ways as a sum of consecutive naturals, for example, 1162981 + ... + 1163866.
It is an arithmetic number, because the mean of its divisors is an integer number (258280128).
Almost surely, 21030793221 is an apocalyptic number.
It is an amenable number.
1030793221 is a deficient number, since it is larger than the sum of its proper divisors (2327291).
1030793221 is an equidigital number, since it uses as much as digits as its factorization.
1030793221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2327290.
The product of its (nonzero) digits is 2268, while the sum is 28.
The square root of 1030793221 is about 32105.9686195573. The cubic root of 1030793221 is about 1010.1608151604.
The spelling of 1030793221 in words is "one billion, thirty million, seven hundred ninety-three thousand, two hundred twenty-one".
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