Base | Representation |
---|---|
bin | 111010100101… |
… | …0101010010101 |
3 | 2010210110101201 |
4 | 1311022222111 |
5 | 30330331032 |
6 | 3014152501 |
7 | 522032461 |
oct | 165125225 |
9 | 63713351 |
10 | 30714517 |
11 | 163792a9 |
12 | a352731 |
13 | 6495292 |
14 | 41174a1 |
15 | 2a6a8e7 |
hex | 1d4aa95 |
30714517 has 4 divisors (see below), whose sum is σ = 30805996. Its totient is φ = 30623040.
The previous prime is 30714511. The next prime is 30714527. The reversal of 30714517 is 71541703.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71541703 = 2791 ⋅25633.
It can be written as a sum of positive squares in 2 ways, for example, as 5574321 + 25140196 = 2361^2 + 5014^2 .
It is a cyclic number.
It is not a de Polignac number, because 30714517 - 27 = 30714389 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 (30714511) 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 3 ways as a sum of consecutive naturals, for example, 45234 + ... + 45907.
It is an arithmetic number, because the mean of its divisors is an integer number (7701499).
Almost surely, 230714517 is an apocalyptic number.
It is an amenable number.
30714517 is a deficient number, since it is larger than the sum of its proper divisors (91479).
30714517 is an equidigital number, since it uses as much as digits as its factorization.
30714517 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 91478.
The product of its (nonzero) digits is 2940, while the sum is 28.
The square root of 30714517 is about 5542.0679353469. The cubic root of 30714517 is about 313.1707771820.
The spelling of 30714517 in words is "thirty million, seven hundred fourteen thousand, five hundred seventeen".
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