Base | Representation |
---|---|
bin | 111001010000… |
… | …0111100101000 |
3 | 2002111010211110 |
4 | 1302200330220 |
5 | 30141104433 |
6 | 2551230320 |
7 | 513106011 |
oct | 162407450 |
9 | 62433743 |
10 | 30019368 |
11 | 15a43aa5 |
12 | a0783a0 |
13 | 62b0a52 |
14 | 3db6008 |
15 | 297e963 |
hex | 1ca0f28 |
30019368 has 64 divisors (see below), whose sum is σ = 77414400. Its totient is φ = 9696960.
The previous prime is 30019343. The next prime is 30019387. The reversal of 30019368 is 86391003.
It is a congruent number.
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 15 ways as a sum of consecutive naturals, for example, 134505 + ... + 134727.
It is an arithmetic number, because the mean of its divisors is an integer number (1209600).
Almost surely, 230019368 is an apocalyptic number.
It is an amenable number.
30019368 is an abundant number, since it is smaller than the sum of its proper divisors (47395032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30019368 is a wasteful number, since it uses less digits than its factorization.
30019368 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 382 (or 378 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 30.
The square root of 30019368 is about 5478.9933381964. The cubic root of 30019368 is about 310.7901038542.
The spelling of 30019368 in words is "thirty million, nineteen thousand, three hundred sixty-eight".
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