Base | Representation |
---|---|
bin | 111010011000… |
… | …0101011000001 |
3 | 2010121001101001 |
4 | 1310300223001 |
5 | 30313424230 |
6 | 3012012001 |
7 | 521110225 |
oct | 164605301 |
9 | 63531331 |
10 | 30608065 |
11 | 16306324 |
12 | a301001 |
13 | 64589a7 |
14 | 40ca785 |
15 | 2a490ca |
hex | 1d30ac1 |
30608065 has 8 divisors (see below), whose sum is σ = 37722600. Its totient is φ = 23824512.
The previous prime is 30608057. The next prime is 30608089. The reversal of 30608065 is 56080603.
It can be written as a sum of positive squares in 4 ways, for example, as 3139984 + 27468081 = 1772^2 + 5241^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30608065 - 23 = 30608057 is a prime.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 82540 + ... + 82909.
It is an arithmetic number, because the mean of its divisors is an integer number (4715325).
Almost surely, 230608065 is an apocalyptic number.
It is an amenable number.
30608065 is a deficient number, since it is larger than the sum of its proper divisors (7114535).
30608065 is a wasteful number, since it uses less digits than its factorization.
30608065 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 165491.
The product of its (nonzero) digits is 4320, while the sum is 28.
The square root of 30608065 is about 5532.4556030754. The cubic root of 30608065 is about 312.8085571024.
Adding to 30608065 its reverse (56080603), we get a palindrome (86688668).
The spelling of 30608065 in words is "thirty million, six hundred eight thousand, sixty-five".
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