Base | Representation |
---|---|
bin | 111010001001… |
… | …1011111101111 |
3 | 2010100222102220 |
4 | 1310103133233 |
5 | 30301113214 |
6 | 3005250423 |
7 | 520101633 |
oct | 164233757 |
9 | 63328386 |
10 | 30488559 |
11 | 16234562 |
12 | a263a13 |
13 | 641648a |
14 | 4098dc3 |
15 | 2a239a9 |
hex | 1d137ef |
30488559 has 16 divisors (see below), whose sum is σ = 42967680. Its totient is φ = 19176480.
The previous prime is 30488539. The next prime is 30488569. The reversal of 30488559 is 95588403.
It is not a de Polignac number, because 30488559 - 25 = 30488527 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30488559.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30488519) 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 15 ways as a sum of consecutive naturals, for example, 14824 + ... + 16754.
It is an arithmetic number, because the mean of its divisors is an integer number (2685480).
Almost surely, 230488559 is an apocalyptic number.
30488559 is a deficient number, since it is larger than the sum of its proper divisors (12479121).
30488559 is a wasteful number, since it uses less digits than its factorization.
30488559 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2230.
The product of its (nonzero) digits is 172800, while the sum is 42.
The square root of 30488559 is about 5521.6445919671. The cubic root of 30488559 is about 312.4009166406.
The spelling of 30488559 in words is "thirty million, four hundred eighty-eight thousand, five hundred fifty-nine".
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