Base | Representation |
---|---|
bin | 11100010000111000… |
… | …111010011001110000 |
3 | 2220100000100112012120 |
4 | 130100320322121300 |
5 | 444123110011213 |
6 | 21535225354240 |
7 | 2123024545620 |
oct | 342070723160 |
9 | 86300315176 |
10 | 30348125808 |
11 | 119637a9110 |
12 | 5a6b638980 |
13 | 2b285431c0 |
14 | 167c788880 |
15 | bc9492423 |
hex | 710e3a670 |
30348125808 has 320 divisors, whose sum is σ = 106265198592. Its totient is φ = 7207050240.
The previous prime is 30348125783. The next prime is 30348125809. The reversal of 30348125808 is 80852184303.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a self number, because there is not a number n which added to its sum of digits gives 30348125808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30348125809) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5138185 + ... + 5144087.
Almost surely, 230348125808 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30348125808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53132599296).
30348125808 is an abundant number, since it is smaller than the sum of its proper divisors (75917072784).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30348125808 is a wasteful number, since it uses less digits than its factorization.
30348125808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6052 (or 6046 counting only the distinct ones).
The product of its (nonzero) digits is 184320, while the sum is 42.
The spelling of 30348125808 in words is "thirty billion, three hundred forty-eight million, one hundred twenty-five thousand, eight hundred eight".
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