Search a number
-
+
30118245 = 352007883
BaseRepresentation
bin111001011100…
…1000101100101
32002200011110120
41302321011211
530202240440
62553312153
7514000203
oct162710545
962604416
1030118245
1116001313
12a105659
136316a61
144000073
15299ddd0
hex1cb9165

30118245 has 8 divisors (see below), whose sum is σ = 48189216. Its totient is φ = 16063056.

The previous prime is 30118213. The next prime is 30118273. The reversal of 30118245 is 54281103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30118245 - 25 = 30118213 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1003927 + ... + 1003956.

It is an arithmetic number, because the mean of its divisors is an integer number (6023652).

Almost surely, 230118245 is an apocalyptic number.

It is an amenable number.

30118245 is a deficient number, since it is larger than the sum of its proper divisors (18070971).

30118245 is a wasteful number, since it uses less digits than its factorization.

30118245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007891.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 30118245 is about 5488.0092018873. The cubic root of 30118245 is about 311.1309539734.

Adding to 30118245 its reverse (54281103), we get a palindrome (84399348).

The spelling of 30118245 in words is "thirty million, one hundred eighteen thousand, two hundred forty-five".

Divisors: 1 3 5 15 2007883 6023649 10039415 30118245