Base | Representation |
---|---|
bin | 11100101110011011… |
… | …101111011000011000 |
3 | 2221121120001010110121 |
4 | 130232123233120120 |
5 | 1001132002414333 |
6 | 22100333323024 |
7 | 2141223634330 |
oct | 345633573030 |
9 | 87546033417 |
10 | 30843794968 |
11 | 12098577748 |
12 | 5b89636474 |
13 | 2ba713cc6c |
14 | 16c85340c0 |
15 | c07c5232d |
hex | 72e6ef618 |
30843794968 has 64 divisors (see below), whose sum is σ = 68645099520. Its totient is φ = 12713760000.
The previous prime is 30843794957. The next prime is 30843794987. The reversal of 30843794968 is 86949734803.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228468 + ... + 337468.
It is an arithmetic number, because the mean of its divisors is an integer number (1072579680).
Almost surely, 230843794968 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 30843794968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34322549760).
30843794968 is an abundant number, since it is smaller than the sum of its proper divisors (37801304552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30843794968 is a wasteful number, since it uses less digits than its factorization.
30843794968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 109208 (or 109204 counting only the distinct ones).
The product of its (nonzero) digits is 31352832, while the sum is 61.
The spelling of 30843794968 in words is "thirty billion, eight hundred forty-three million, seven hundred ninety-four thousand, nine hundred sixty-eight".
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