Base | Representation |
---|---|
bin | 111001111101… |
… | …1001001110101 |
3 | 2010011220200002 |
4 | 1303323021311 |
5 | 30234420403 |
6 | 3003201045 |
7 | 516205145 |
oct | 163731165 |
9 | 63156602 |
10 | 30388853 |
11 | 16176660 |
12 | a216185 |
13 | 63acc91 |
14 | 4070925 |
15 | 2a04188 |
hex | 1cfb275 |
30388853 has 8 divisors (see below), whose sum is σ = 33311136. Its totient is φ = 27493200.
The previous prime is 30388829. The next prime is 30388871. The reversal of 30388853 is 35888303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30388853 - 26 = 30388789 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30381853) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4226 + ... + 8867.
It is an arithmetic number, because the mean of its divisors is an integer number (4163892).
Almost surely, 230388853 is an apocalyptic number.
It is an amenable number.
30388853 is a deficient number, since it is larger than the sum of its proper divisors (2922283).
30388853 is a wasteful number, since it uses less digits than its factorization.
30388853 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13315.
The product of its (nonzero) digits is 69120, while the sum is 38.
The square root of 30388853 is about 5512.6085476841. The cubic root of 30388853 is about 312.0599990080.
It can be divided in two parts, 30 and 388853, that added together give a palindrome (388883).
The spelling of 30388853 in words is "thirty million, three hundred eighty-eight thousand, eight hundred fifty-three".
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