Base | Representation |
---|---|
bin | 111001111000… |
… | …0010000100001 |
3 | 2010002122110012 |
4 | 1303300100201 |
5 | 30232003400 |
6 | 3002214305 |
7 | 515631062 |
oct | 163602041 |
9 | 63078405 |
10 | 30344225 |
11 | 1614607a |
12 | a1b4395 |
13 | 6395882 |
14 | 405c569 |
15 | 29e5d35 |
hex | 1cf0421 |
30344225 has 12 divisors (see below), whose sum is σ = 37799664. Its totient is φ = 24163920.
The previous prime is 30344221. The next prime is 30344239. The reversal of 30344225 is 52244303.
It is not a de Polignac number, because 30344225 - 22 = 30344221 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30344225.
It is not an unprimeable number, because it can be changed into a prime (30344221) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3002 + ... + 8348.
It is an arithmetic number, because the mean of its divisors is an integer number (3149972).
Almost surely, 230344225 is an apocalyptic number.
It is an amenable number.
30344225 is a deficient number, since it is larger than the sum of its proper divisors (7455439).
30344225 is a wasteful number, since it uses less digits than its factorization.
30344225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5584 (or 5579 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 23.
The square root of 30344225 is about 5508.5592490233. The cubic root of 30344225 is about 311.9071640569.
Adding to 30344225 its reverse (52244303), we get a palindrome (82588528).
The spelling of 30344225 in words is "thirty million, three hundred forty-four thousand, two hundred twenty-five".
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