Base | Representation |
---|---|
bin | 111100100000101… |
… | …1100110010110101 |
3 | 12020111121012001001 |
4 | 1321001130302311 |
5 | 13124242020341 |
6 | 533251003301 |
7 | 101213212141 |
oct | 17101346265 |
9 | 5214535031 |
10 | 2030423221 |
11 | 952137022 |
12 | 487b99531 |
13 | 264869b78 |
14 | 153938221 |
15 | bd3c1d31 |
hex | 7905ccb5 |
2030423221 has 2 divisors, whose sum is σ = 2030423222. Its totient is φ = 2030423220.
The previous prime is 2030423209. The next prime is 2030423243. The reversal of 2030423221 is 1223240302.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1614834225 + 415588996 = 40185^2 + 20386^2 .
It is a cyclic number.
It is not a de Polignac number, because 2030423221 - 25 = 2030423189 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2030423821) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015211610 + 1015211611.
It is an arithmetic number, because the mean of its divisors is an integer number (1015211611).
Almost surely, 22030423221 is an apocalyptic number.
It is an amenable number.
2030423221 is a deficient number, since it is larger than the sum of its proper divisors (1).
2030423221 is an equidigital number, since it uses as much as digits as its factorization.
2030423221 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 576, while the sum is 19.
The square root of 2030423221 is about 45060.2177202907. The cubic root of 2030423221 is about 1266.2774039865.
Adding to 2030423221 its reverse (1223240302), we get a palindrome (3253663523).
The spelling of 2030423221 in words is "two billion, thirty million, four hundred twenty-three thousand, two hundred twenty-one".
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