Base | Representation |
---|---|
bin | 111011000101… |
… | …1100010000000 |
3 | 2011021221212201 |
4 | 1312023202000 |
5 | 30412331344 |
6 | 3024002544 |
7 | 524220232 |
oct | 166134200 |
9 | 64257781 |
10 | 30980224 |
11 | 1653a9a0 |
12 | a460454 |
13 | 65591c2 |
14 | 4186252 |
15 | 2abe4d4 |
hex | 1d8b880 |
30980224 has 32 divisors (see below), whose sum is σ = 67332240. Its totient is φ = 14081280.
The previous prime is 30980219. The next prime is 30980227. The reversal of 30980224 is 42208903.
It is a tau number, because it is divible by the number of its divisors (32).
It is a junction number, because it is equal to n+sod(n) for n = 30980192 and 30980201.
It is not an unprimeable number, because it can be changed into a prime (30980227) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9594 + ... + 12409.
Almost surely, 230980224 is an apocalyptic number.
It is an amenable number.
30980224 is an abundant number, since it is smaller than the sum of its proper divisors (36352016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30980224 is a wasteful number, since it uses less digits than its factorization.
30980224 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22028 (or 22016 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 28.
The square root of 30980224 is about 5565.9881422799. The cubic root of 30980224 is about 314.0712510899.
The spelling of 30980224 in words is "thirty million, nine hundred eighty thousand, two hundred twenty-four".
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