Base | Representation |
---|---|
bin | 111010110110… |
… | …0100100101011 |
3 | 2011001111221020 |
4 | 1311230210223 |
5 | 30344302134 |
6 | 3021143523 |
7 | 523151442 |
oct | 165544453 |
9 | 64044836 |
10 | 30853419 |
11 | 164636a3 |
12 | a3baba3 |
13 | 651357c |
14 | 4151d59 |
15 | 2a96b49 |
hex | 1d6c92b |
30853419 has 32 divisors (see below), whose sum is σ = 47070720. Its totient is φ = 17859072.
The previous prime is 30853411. The next prime is 30853423. The reversal of 30853419 is 91435803.
It is not a de Polignac number, because 30853419 - 23 = 30853411 is a prime.
It is a super-2 number, since 2×308534192 = 1903866927979122, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30853419.
It is not an unprimeable number, because it can be changed into a prime (30853411) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33564 + ... + 34470.
It is an arithmetic number, because the mean of its divisors is an integer number (1470960).
Almost surely, 230853419 is an apocalyptic number.
30853419 is a deficient number, since it is larger than the sum of its proper divisors (16217301).
30853419 is a wasteful number, since it uses less digits than its factorization.
30853419 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 979.
The product of its (nonzero) digits is 12960, while the sum is 33.
The square root of 30853419 is about 5554.5854030702. The cubic root of 30853419 is about 313.6421572931.
The spelling of 30853419 in words is "thirty million, eight hundred fifty-three thousand, four hundred nineteen".
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