Base | Representation |
---|---|
bin | 11100001000110010… |
… | …000110000100010000 |
3 | 2212222112102202110211 |
4 | 130020302012010100 |
5 | 443333300331343 |
6 | 21513530333504 |
7 | 2116453534660 |
oct | 341062060420 |
9 | 85875382424 |
10 | 30212120848 |
11 | 118a3a55618 |
12 | 5a31b8a294 |
13 | 2b063043b0 |
14 | 16686a41a0 |
15 | bbc57979d |
hex | 708c86110 |
30212120848 has 240 divisors, whose sum is σ = 75148940160. Its totient is φ = 11455082496.
The previous prime is 30212120831. The next prime is 30212120863. The reversal of 30212120848 is 84802121203.
It is a happy number.
It is a super-2 number, since 2×302121208482 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 339461988 + ... + 339462076.
It is an arithmetic number, because the mean of its divisors is an integer number (313120584).
Almost surely, 230212120848 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 30212120848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37574470080).
30212120848 is an abundant number, since it is smaller than the sum of its proper divisors (44936819312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30212120848 is a wasteful number, since it uses less digits than its factorization.
30212120848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 306 (or 247 counting only the distinct ones).
The product of its (nonzero) digits is 6144, while the sum is 31.
It can be divided in two parts, 30212 and 120848, that multiplied together give a square (3651059776 = 604242).
The spelling of 30212120848 in words is "thirty billion, two hundred twelve million, one hundred twenty thousand, eight hundred forty-eight".
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