Base | Representation |
---|---|
bin | 111010110100… |
… | …0110101000110 |
3 | 2011000201220100 |
4 | 1311220311012 |
5 | 30343304321 |
6 | 3020544530 |
7 | 523055646 |
oct | 165506506 |
9 | 64021810 |
10 | 30838086 |
11 | 16453124 |
12 | a3b2146 |
13 | 65095b6 |
14 | 414a526 |
15 | 2a92326 |
hex | 1d68d46 |
30838086 has 12 divisors (see below), whose sum is σ = 66815892. Its totient is φ = 10279356.
The previous prime is 30838081. The next prime is 30838091. The reversal of 30838086 is 68083803.
It is an interprime number because it is at equal distance from previous prime (30838081) and next prime (30838091).
It is a self number, because there is not a number n which added to its sum of digits gives 30838086.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30838081) 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 5 ways as a sum of consecutive naturals, for example, 856596 + ... + 856631.
It is an arithmetic number, because the mean of its divisors is an integer number (5567991).
Almost surely, 230838086 is an apocalyptic number.
30838086 is an abundant number, since it is smaller than the sum of its proper divisors (35977806).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30838086 is a wasteful number, since it uses less digits than its factorization.
30838086 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1713235 (or 1713232 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The square root of 30838086 is about 5553.2050205264. The cubic root of 30838086 is about 313.5901925274.
The spelling of 30838086 in words is "thirty million, eight hundred thirty-eight thousand, eighty-six".
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