Base | Representation |
---|---|
bin | 111001010111… |
… | …1000010001110 |
3 | 2002121001222120 |
4 | 1302233002032 |
5 | 30144431240 |
6 | 2552353410 |
7 | 513436152 |
oct | 162570216 |
9 | 62531876 |
10 | 30077070 |
11 | 15a83391 |
12 | a0a5866 |
13 | 63010aa |
14 | 3dcd062 |
15 | 2991ad0 |
hex | 1caf08e |
30077070 has 16 divisors (see below), whose sum is σ = 72185040. Its totient is φ = 8020544.
The previous prime is 30077051. The next prime is 30077071. The reversal of 30077070 is 7077003.
It is a self number, because there is not a number n which added to its sum of digits gives 30077070.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30077071) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501255 + ... + 501314.
It is an arithmetic number, because the mean of its divisors is an integer number (4511565).
Almost surely, 230077070 is an apocalyptic number.
30077070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30077070 is an abundant number, since it is smaller than the sum of its proper divisors (42107970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30077070 is a wasteful number, since it uses less digits than its factorization.
30077070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1002579.
The product of its (nonzero) digits is 1029, while the sum is 24.
The square root of 30077070 is about 5484.2565585501. The cubic root of 30077070 is about 310.9891057415.
The spelling of 30077070 in words is "thirty million, seventy-seven thousand, seventy".
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