Base | Representation |
---|---|
bin | 111001101010… |
… | …1100110010001 |
3 | 2002220002122202 |
4 | 1303111212101 |
5 | 30220010100 |
6 | 3000012545 |
7 | 514664522 |
oct | 163254621 |
9 | 62802582 |
10 | 30235025 |
11 | 16081027 |
12 | a161155 |
13 | 6357c62 |
14 | 4030849 |
15 | 29c37d5 |
hex | 1cd5991 |
30235025 has 12 divisors (see below), whose sum is σ = 37599900. Its totient is φ = 24118080.
The previous prime is 30235019. The next prime is 30235103. The reversal of 30235025 is 52053203.
It can be written as a sum of positive squares in 6 ways, for example, as 5870929 + 24364096 = 2423^2 + 4936^2 .
It is not a de Polignac number, because 30235025 - 26 = 30234961 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30234988 and 30235006.
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 8171 + ... + 11279.
It is an arithmetic number, because the mean of its divisors is an integer number (3133325).
Almost surely, 230235025 is an apocalyptic number.
It is an amenable number.
30235025 is a deficient number, since it is larger than the sum of its proper divisors (7364875).
30235025 is a wasteful number, since it uses less digits than its factorization.
30235025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3508 (or 3503 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 20.
The square root of 30235025 is about 5498.6384678391. The cubic root of 30235025 is about 311.5325600827.
Adding to 30235025 its reverse (52053203), we get a palindrome (82288228).
The spelling of 30235025 in words is "thirty million, two hundred thirty-five thousand, twenty-five".
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