Base | Representation |
---|---|
bin | 111001110011… |
… | …1111010100111 |
3 | 2010000220120122 |
4 | 1303213322213 |
5 | 30224410210 |
6 | 3001352155 |
7 | 515426336 |
oct | 163477247 |
9 | 63026518 |
10 | 30310055 |
11 | 16122436 |
12 | a19865b |
13 | 6383159 |
14 | 404dd1d |
15 | 29dab55 |
hex | 1ce7ea7 |
30310055 has 8 divisors (see below), whose sum is σ = 37218192. Its totient is φ = 23683968.
The previous prime is 30310051. The next prime is 30310057. The reversal of 30310055 is 55001303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30310055 - 22 = 30310051 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 (30310051) 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 7 ways as a sum of consecutive naturals, for example, 70274 + ... + 70703.
It is an arithmetic number, because the mean of its divisors is an integer number (4652274).
Almost surely, 230310055 is an apocalyptic number.
30310055 is a deficient number, since it is larger than the sum of its proper divisors (6908137).
30310055 is a wasteful number, since it uses less digits than its factorization.
30310055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 141025.
The product of its (nonzero) digits is 225, while the sum is 17.
The square root of 30310055 is about 5505.4568384467. The cubic root of 30310055 is about 311.7900426955.
Adding to 30310055 its reverse (55001303), we get a palindrome (85311358).
The spelling of 30310055 in words is "thirty million, three hundred ten thousand, fifty-five".
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