Base | Representation |
---|---|
bin | 111010010001… |
… | …1100001110001 |
3 | 2010111022111222 |
4 | 1310203201301 |
5 | 30310213400 |
6 | 3010514425 |
7 | 520464242 |
oct | 164434161 |
9 | 63438458 |
10 | 30554225 |
11 | 16279929 |
12 | a295a15 |
13 | 643a330 |
14 | 40b4cc9 |
15 | 2a38185 |
hex | 1d23871 |
30554225 has 24 divisors (see below), whose sum is σ = 41815032. Its totient is φ = 22003200.
The previous prime is 30554207. The next prime is 30554233. The reversal of 30554225 is 52245503.
It can be written as a sum of positive squares in 12 ways, for example, as 24760576 + 5793649 = 4976^2 + 2407^2 .
It is not a de Polignac number, because 30554225 - 28 = 30553969 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30554194 and 30554203.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12179 + ... + 14471.
It is an arithmetic number, because the mean of its divisors is an integer number (1742293).
Almost surely, 230554225 is an apocalyptic number.
It is an amenable number.
30554225 is a deficient number, since it is larger than the sum of its proper divisors (11260807).
30554225 is a wasteful number, since it uses less digits than its factorization.
30554225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2357 (or 2352 counting only the distinct ones).
The product of its (nonzero) digits is 6000, while the sum is 26.
The square root of 30554225 is about 5527.5876293371. The cubic root of 30554225 is about 312.6250379630.
Adding to 30554225 its reverse (52245503), we get a palindrome (82799728).
The spelling of 30554225 in words is "thirty million, five hundred fifty-four thousand, two hundred twenty-five".
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