Base | Representation |
---|---|
bin | 1101000101000101… |
… | …11010110110001101 |
3 | 200010101012002120101 |
4 | 12202202322312031 |
5 | 103340114431341 |
6 | 3120442251101 |
7 | 336004162213 |
oct | 64242726615 |
9 | 20111162511 |
10 | 7022030221 |
11 | 2a83831268 |
12 | 143b7b6a91 |
13 | 87ba4a48b |
14 | 4a8852cb3 |
15 | 2b171b831 |
hex | 1a28bad8d |
7022030221 has 4 divisors (see below), whose sum is σ = 7029262944. Its totient is φ = 7014797500.
The previous prime is 7022030177. The next prime is 7022030227. The reversal of 7022030221 is 1220302207.
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.
It is a cyclic number.
It is not a de Polignac number, because 7022030221 - 211 = 7022028173 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 (7022030227) 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, 3614905 + ... + 3616846.
It is an arithmetic number, because the mean of its divisors is an integer number (1757315736).
Almost surely, 27022030221 is an apocalyptic number.
It is an amenable number.
7022030221 is a deficient number, since it is larger than the sum of its proper divisors (7232723).
7022030221 is an equidigital number, since it uses as much as digits as its factorization.
7022030221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7232722.
The product of its (nonzero) digits is 336, while the sum is 19.
The square root of 7022030221 is about 83797.5549822308. The cubic root of 7022030221 is about 1914.9358572548.
Adding to 7022030221 its reverse (1220302207), we get a palindrome (8242332428).
The spelling of 7022030221 in words is "seven billion, twenty-two million, thirty thousand, two hundred twenty-one".
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