Base | Representation |
---|---|
bin | 111001111000… |
… | …1011010110100 |
3 | 2010002212222022 |
4 | 1303301122310 |
5 | 30232131410 |
6 | 3002252312 |
7 | 515650664 |
oct | 163613264 |
9 | 63085868 |
10 | 30348980 |
11 | 16149702 |
12 | a1b7098 |
13 | 6397a9c |
14 | 40601a4 |
15 | 29e7455 |
hex | 1cf16b4 |
30348980 has 12 divisors (see below), whose sum is σ = 63732900. Its totient is φ = 12139584.
The previous prime is 30348977. The next prime is 30349001. The reversal of 30348980 is 8984303.
It can be written as a sum of positive squares in 2 ways, for example, as 7862416 + 22486564 = 2804^2 + 4742^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 30348980.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758705 + ... + 758744.
It is an arithmetic number, because the mean of its divisors is an integer number (5311075).
Almost surely, 230348980 is an apocalyptic number.
It is an amenable number.
30348980 is an abundant number, since it is smaller than the sum of its proper divisors (33383920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30348980 is a wasteful number, since it uses less digits than its factorization.
30348980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1517458 (or 1517456 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 35.
The square root of 30348980 is about 5508.9908331744. The cubic root of 30348980 is about 311.9234553622.
The spelling of 30348980 in words is "thirty million, three hundred forty-eight thousand, nine hundred eighty".
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