Base | Representation |
---|---|
bin | 11100101011111101… |
… | …111101101101100000 |
3 | 2221111200012211010200 |
4 | 130223331331231200 |
5 | 1001040410404122 |
6 | 22052255025200 |
7 | 2140212243144 |
oct | 345375755540 |
9 | 87450184120 |
10 | 30802434912 |
11 | 12077198287 |
12 | 5b7780b200 |
13 | 2b9b6bb362 |
14 | 16c2c49224 |
15 | c042d25ac |
hex | 72bf7db60 |
30802434912 has 288 divisors, whose sum is σ = 97597936800. Its totient is φ = 9169649664.
The previous prime is 30802434893. The next prime is 30802434937. The reversal of 30802434912 is 21943420803.
30802434912 is a `hidden beast` number, since 308 + 0 + 2 + 4 + 349 + 1 + 2 = 666.
It is a tau number, because it is divible by the number of its divisors (288).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8375218 + ... + 8378894.
It is an arithmetic number, because the mean of its divisors is an integer number (338881725).
Almost surely, 230802434912 is an apocalyptic number.
30802434912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30802434912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48798968400).
30802434912 is an abundant number, since it is smaller than the sum of its proper divisors (66795501888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30802434912 is a wasteful number, since it uses less digits than its factorization.
30802434912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3798 (or 3787 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 36.
The spelling of 30802434912 in words is "thirty billion, eight hundred two million, four hundred thirty-four thousand, nine hundred twelve".
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