Base | Representation |
---|---|
bin | 111001011000… |
… | …0011000010100 |
3 | 2002121100112122 |
4 | 1302300120110 |
5 | 30200120310 |
6 | 2552435112 |
7 | 513461213 |
oct | 162603024 |
9 | 62540478 |
10 | 30082580 |
11 | 15a87540 |
12 | a0a8a98 |
13 | 6303758 |
14 | 3dd107a |
15 | 2993555 |
hex | 1cb0614 |
30082580 has 24 divisors (see below), whose sum is σ = 68916960. Its totient is φ = 10939040.
The previous prime is 30082579. The next prime is 30082627. The reversal of 30082580 is 8528003.
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, 68150 + ... + 68589.
It is an arithmetic number, because the mean of its divisors is an integer number (2871540).
Almost surely, 230082580 is an apocalyptic number.
It is an amenable number.
30082580 is an abundant number, since it is smaller than the sum of its proper divisors (38834380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30082580 is a wasteful number, since it uses less digits than its factorization.
30082580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 136759 (or 136757 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 26.
The square root of 30082580 is about 5484.7588825763. The cubic root of 30082580 is about 311.0080952391.
The spelling of 30082580 in words is "thirty million, eighty-two thousand, five hundred eighty".
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