Base | Representation |
---|---|
bin | 111001011011… |
… | …0110010110101 |
3 | 2002122200120201 |
4 | 1302312302311 |
5 | 30201440403 |
6 | 2553200501 |
7 | 513630625 |
oct | 162666265 |
9 | 62580521 |
10 | 30108853 |
11 | 15aa5255 |
12 | a100131 |
13 | 63126b8 |
14 | 3dda885 |
15 | 299b21d |
hex | 1cb6cb5 |
30108853 has 8 divisors (see below), whose sum is σ = 32016600. Its totient is φ = 28216320.
The previous prime is 30108847. The next prime is 30108893. The reversal of 30108853 is 35880103.
It can be written as a sum of positive squares in 4 ways, for example, as 14569489 + 15539364 = 3817^2 + 3942^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30108853 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 (30108833) 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, 423 + ... + 7771.
It is an arithmetic number, because the mean of its divisors is an integer number (4002075).
Almost surely, 230108853 is an apocalyptic number.
It is an amenable number.
30108853 is a deficient number, since it is larger than the sum of its proper divisors (1907747).
30108853 is a wasteful number, since it uses less digits than its factorization.
30108853 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7607.
The product of its (nonzero) digits is 2880, while the sum is 28.
The square root of 30108853 is about 5487.1534514719. The cubic root of 30108853 is about 311.0986098388.
Adding to 30108853 its reverse (35880103), we get a palindrome (65988956).
The spelling of 30108853 in words is "thirty million, one hundred eight thousand, eight hundred fifty-three".
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