Base | Representation |
---|---|
bin | 111010000110… |
… | …1110010010101 |
3 | 2010022210100202 |
4 | 1310031302111 |
5 | 30244341143 |
6 | 3004550245 |
7 | 516643514 |
oct | 164156225 |
9 | 63283322 |
10 | 30465173 |
11 | 16218a32 |
12 | a252385 |
13 | 640893b |
14 | 409067b |
15 | 2a1bab8 |
hex | 1d0dc95 |
30465173 has 16 divisors (see below), whose sum is σ = 33430320. Its totient is φ = 27648000.
The previous prime is 30465143. The next prime is 30465187. The reversal of 30465173 is 37156403.
It can be written as a sum of positive squares in 8 ways, for example, as 2829124 + 27636049 = 1682^2 + 5257^2 .
It is a cyclic number.
It is not a de Polignac number, because 30465173 - 210 = 30464149 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 (30465103) 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 15 ways as a sum of consecutive naturals, for example, 75773 + ... + 76173.
It is an arithmetic number, because the mean of its divisors is an integer number (2089395).
Almost surely, 230465173 is an apocalyptic number.
It is an amenable number.
30465173 is a deficient number, since it is larger than the sum of its proper divisors (2965147).
30465173 is a wasteful number, since it uses less digits than its factorization.
30465173 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 568.
The product of its (nonzero) digits is 7560, while the sum is 29.
The square root of 30465173 is about 5519.5265195486. The cubic root of 30465173 is about 312.3210213528.
The spelling of 30465173 in words is "thirty million, four hundred sixty-five thousand, one hundred seventy-three".
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