Base | Representation |
---|---|
bin | 111001011010… |
… | …1001011000011 |
3 | 2002122100110201 |
4 | 1302311023003 |
5 | 30201232321 |
6 | 2553110031 |
7 | 513602356 |
oct | 162651303 |
9 | 62570421 |
10 | 30102211 |
11 | 15aa0267 |
12 | a0b8317 |
13 | 630c679 |
14 | 3dd829d |
15 | 2999291 |
hex | 1cb52c3 |
30102211 has 2 divisors, whose sum is σ = 30102212. Its totient is φ = 30102210.
The previous prime is 30102199. The next prime is 30102221. The reversal of 30102211 is 11220103.
It is an a-pointer prime, because the next prime (30102221) can be obtained adding 30102211 to its sum of digits (10).
It is a strong prime.
It is an emirp because it is prime and its reverse (11220103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30102211 - 213 = 30094019 is a prime.
It is a super-2 number, since 2×301022112 = 1812286214177042, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (30102221) 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 as a sum of consecutive naturals, namely, 15051105 + 15051106.
It is an arithmetic number, because the mean of its divisors is an integer number (15051106).
Almost surely, 230102211 is an apocalyptic number.
30102211 is a deficient number, since it is larger than the sum of its proper divisors (1).
30102211 is an equidigital number, since it uses as much as digits as its factorization.
30102211 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 30102211 is about 5486.5481862461. The cubic root of 30102211 is about 311.0757320833.
Adding to 30102211 its reverse (11220103), we get a palindrome (41322314).
The spelling of 30102211 in words is "thirty million, one hundred two thousand, two hundred eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.083 sec. • engine limits •