Base | Representation |
---|---|
bin | 111001100011… |
… | …0011111010101 |
3 | 2002202221202202 |
4 | 1303012133111 |
5 | 30211020031 |
6 | 2554414245 |
7 | 514316225 |
oct | 163063725 |
9 | 62687682 |
10 | 30173141 |
11 | 16039589 |
12 | a131385 |
13 | 6335a3b |
14 | 4016085 |
15 | 29b02cb |
hex | 1cc67d5 |
30173141 has 2 divisors, whose sum is σ = 30173142. Its totient is φ = 30173140.
The previous prime is 30173063. The next prime is 30173183. The reversal of 30173141 is 14137103.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 29866225 + 306916 = 5465^2 + 554^2 .
It is an emirp because it is prime and its reverse (14137103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30173141 - 210 = 30172117 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30173641) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15086570 + 15086571.
It is an arithmetic number, because the mean of its divisors is an integer number (15086571).
Almost surely, 230173141 is an apocalyptic number.
It is an amenable number.
30173141 is a deficient number, since it is larger than the sum of its proper divisors (1).
30173141 is an equidigital number, since it uses as much as digits as its factorization.
30173141 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 252, while the sum is 20.
The square root of 30173141 is about 5493.0083742882. The cubic root of 30173141 is about 311.3198702300.
The spelling of 30173141 in words is "thirty million, one hundred seventy-three thousand, one hundred forty-one".
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