Base | Representation |
---|---|
bin | 11100000011010110… |
… | …011001001101011100 |
3 | 2212202011220222100002 |
4 | 130003112121031130 |
5 | 443141432120043 |
6 | 21500512553432 |
7 | 2114266022150 |
oct | 340326311534 |
9 | 85664828302 |
10 | 30120973148 |
11 | 1185755aa42 |
12 | 5a07552878 |
13 | 2ac046cc46 |
14 | 165a539060 |
15 | bb4572bb8 |
hex | 70359935c |
30120973148 has 12 divisors (see below), whose sum is σ = 60241946352. Its totient is φ = 12908988480.
The previous prime is 30120973123. The next prime is 30120973151. The reversal of 30120973148 is 84137902103.
30120973148 is an admirable number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537874493 + ... + 537874548.
It is an arithmetic number, because the mean of its divisors is an integer number (5020162196).
Almost surely, 230120973148 is an apocalyptic number.
It is an amenable number.
30120973148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30120973148 is a wasteful number, since it uses less digits than its factorization.
30120973148 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1075749052 (or 1075749050 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 38.
The spelling of 30120973148 in words is "thirty billion, one hundred twenty million, nine hundred seventy-three thousand, one hundred forty-eight".
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