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30134245 = 523572557
BaseRepresentation
bin111001011110…
…0111111100101
32002200222102011
41302330333211
530203243440
62553514221
7514064641
oct162747745
962628364
1030134245
1116012339
12a112971
13632111b
144005c21
1529a39ea
hex1cbcfe5

30134245 has 8 divisors (see below), whose sum is σ = 36190584. Its totient is φ = 24087744.

The previous prime is 30134239. The next prime is 30134267. The reversal of 30134245 is 54243103.

It can be written as a sum of positive squares in 4 ways, for example, as 388129 + 29746116 = 623^2 + 5454^2 .

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 30134245 - 213 = 30126053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10507 + ... + 13063.

It is an arithmetic number, because the mean of its divisors is an integer number (4523823).

Almost surely, 230134245 is an apocalyptic number.

It is an amenable number.

30134245 is a deficient number, since it is larger than the sum of its proper divisors (6056339).

30134245 is a wasteful number, since it uses less digits than its factorization.

30134245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4919.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30134245 is about 5489.4667318420. The cubic root of 30134245 is about 311.1860392327.

Adding to 30134245 its reverse (54243103), we get a palindrome (84377348).

The spelling of 30134245 in words is "thirty million, one hundred thirty-four thousand, two hundred forty-five".

Divisors: 1 5 2357 2557 11785 12785 6026849 30134245