Base | Representation |
---|---|
bin | 111010110111… |
… | …0010011111100 |
3 | 2011001212200222 |
4 | 1311232103330 |
5 | 30400014130 |
6 | 3021240512 |
7 | 523211264 |
oct | 165562374 |
9 | 64055628 |
10 | 30860540 |
11 | 16468a87 |
12 | a403138 |
13 | 6516899 |
14 | 41547a4 |
15 | 2a98ce5 |
hex | 1d6e4fc |
30860540 has 24 divisors (see below), whose sum is σ = 65908080. Its totient is φ = 12134528.
The previous prime is 30860539. The next prime is 30860573. The reversal of 30860540 is 4506803.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11897 + ... + 14256.
It is an arithmetic number, because the mean of its divisors is an integer number (2746170).
Almost surely, 230860540 is an apocalyptic number.
It is an amenable number.
30860540 is an abundant number, since it is smaller than the sum of its proper divisors (35047540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30860540 is a wasteful number, since it uses less digits than its factorization.
30860540 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26221 (or 26219 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 26.
The square root of 30860540 is about 5555.2263680250. The cubic root of 30860540 is about 313.6662850782. Note that the first 3 decimals are identical.
The spelling of 30860540 in words is "thirty million, eight hundred sixty thousand, five hundred forty".
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