Base | Representation |
---|---|
bin | 111010001001… |
… | …0101010000101 |
3 | 2010100210201201 |
4 | 1310102222011 |
5 | 30301011000 |
6 | 3005222501 |
7 | 520055626 |
oct | 164225205 |
9 | 63323651 |
10 | 30485125 |
11 | 16231a20 |
12 | a261a31 |
13 | 6414a48 |
14 | 4097a4d |
15 | 2a2296a |
hex | 1d12a85 |
30485125 has 16 divisors (see below), whose sum is σ = 41505984. Its totient is φ = 22170000.
The previous prime is 30485113. The next prime is 30485129. The reversal of 30485125 is 52158403.
It is not a de Polignac number, because 30485125 - 211 = 30483077 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30485093 and 30485102.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30485129) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9711 + ... + 12460.
It is an arithmetic number, because the mean of its divisors is an integer number (2594124).
Almost surely, 230485125 is an apocalyptic number.
It is an amenable number.
30485125 is a deficient number, since it is larger than the sum of its proper divisors (11020859).
30485125 is a wasteful number, since it uses less digits than its factorization.
30485125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22197 (or 22187 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 28.
The square root of 30485125 is about 5521.3336251308. Note that the first 3 decimals coincide. The cubic root of 30485125 is about 312.3891873771.
The spelling of 30485125 in words is "thirty million, four hundred eighty-five thousand, one hundred twenty-five".
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