Base | Representation |
---|---|
bin | 111001100100… |
… | …0110011001101 |
3 | 2002210102202021 |
4 | 1303020303031 |
5 | 30211320410 |
6 | 2554530141 |
7 | 514355635 |
oct | 163106315 |
9 | 62712667 |
10 | 30182605 |
11 | 16045702 |
12 | a136951 |
13 | 633a13b |
14 | 40196c5 |
15 | 29b2eda |
hex | 1cc8ccd |
30182605 has 12 divisors (see below), whose sum is σ = 36638460. Its totient is φ = 23869632.
The previous prime is 30182573. The next prime is 30182609. The reversal of 30182605 is 50628103.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 7733961 + 22448644 = 2781^2 + 4738^2 .
It is not a de Polignac number, because 30182605 - 25 = 30182573 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30182605.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30182609) 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 in 11 ways as a sum of consecutive naturals, for example, 52761 + ... + 53329.
It is an arithmetic number, because the mean of its divisors is an integer number (3053205).
Almost surely, 230182605 is an apocalyptic number.
It is an amenable number.
30182605 is a deficient number, since it is larger than the sum of its proper divisors (6455855).
30182605 is an equidigital number, since it uses as much as digits as its factorization.
30182605 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 780 (or 677 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 25.
The square root of 30182605 is about 5493.8697654750. The cubic root of 30182605 is about 311.3524159883.
The spelling of 30182605 in words is "thirty million, one hundred eighty-two thousand, six hundred five".
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