Base | Representation |
---|---|
bin | 111001010011… |
… | …1111111011001 |
3 | 2002112121101221 |
4 | 1302213333121 |
5 | 30143020332 |
6 | 2552012041 |
7 | 513256063 |
oct | 162477731 |
9 | 62477357 |
10 | 30048217 |
11 | 15a63741 |
12 | a091021 |
13 | 62c0c14 |
14 | 3dc2733 |
15 | 2988297 |
hex | 1ca7fd9 |
30048217 has 4 divisors (see below), whose sum is σ = 30180816. Its totient is φ = 29915620.
The previous prime is 30048211. The next prime is 30048223. The reversal of 30048217 is 71284003.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71284003 = 7 ⋅10183429.
It is an interprime number because it is at equal distance from previous prime (30048211) and next prime (30048223).
It is a cyclic number.
It is not a de Polignac number, because 30048217 - 211 = 30046169 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30048191 and 30048200.
It is not an unprimeable number, because it can be changed into a prime (30048211) 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 3 ways as a sum of consecutive naturals, for example, 65959 + ... + 66412.
It is an arithmetic number, because the mean of its divisors is an integer number (7545204).
Almost surely, 230048217 is an apocalyptic number.
It is an amenable number.
30048217 is a deficient number, since it is larger than the sum of its proper divisors (132599).
30048217 is a wasteful number, since it uses less digits than its factorization.
30048217 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132598.
The product of its (nonzero) digits is 1344, while the sum is 25.
The square root of 30048217 is about 5481.6253976353. The cubic root of 30048217 is about 310.8896297458.
The spelling of 30048217 in words is "thirty million, forty-eight thousand, two hundred seventeen".
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