Base | Representation |
---|---|
bin | 111001101000… |
… | …1111011101011 |
3 | 2002212100001200 |
4 | 1303101323223 |
5 | 30214020021 |
6 | 2555415243 |
7 | 514602663 |
oct | 163217353 |
9 | 62770050 |
10 | 30220011 |
11 | 16070818 |
12 | a154523 |
13 | 6351183 |
14 | 40291a3 |
15 | 29be126 |
hex | 1cd1eeb |
30220011 has 6 divisors (see below), whose sum is σ = 43651140. Its totient is φ = 20146668.
The previous prime is 30220007. The next prime is 30220049. The reversal of 30220011 is 11002203.
It is a happy number.
It is not a de Polignac number, because 30220011 - 22 = 30220007 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 3357779 = 30220011 / (3 + 0 + 2 + 2 + 0 + 0 + 1 + 1).
It is a junction number, because it is equal to n+sod(n) for n = 30219975 and 30220002.
It is not an unprimeable number, because it can be changed into a prime (30220061) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1678881 + ... + 1678898.
It is an arithmetic number, because the mean of its divisors is an integer number (7275190).
Almost surely, 230220011 is an apocalyptic number.
30220011 is a deficient number, since it is larger than the sum of its proper divisors (13431129).
30220011 is a wasteful number, since it uses less digits than its factorization.
30220011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3357785 (or 3357782 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 9.
The square root of 30220011 is about 5497.2730512500. The cubic root of 30220011 is about 311.4809849719.
Adding to 30220011 its reverse (11002203), we get a palindrome (41222214).
The spelling of 30220011 in words is "thirty million, two hundred twenty thousand, eleven".
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