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30130386 = 23111335117
BaseRepresentation
bin111001011110…
…0000011010010
32002200210010020
41302330003102
530203133021
62553444310
7514050456
oct162740322
962623106
1030130386
111600a450
12a110696
13631c440
144004666
1529a27c6
hex1cbc0d2

30130386 has 32 divisors (see below), whose sum is σ = 70797888. Its totient is φ = 8427840.

The previous prime is 30130381. The next prime is 30130403. The reversal of 30130386 is 68303103.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30130381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16701 + ... + 18416.

It is an arithmetic number, because the mean of its divisors is an integer number (2212434).

Almost surely, 230130386 is an apocalyptic number.

30130386 is an abundant number, since it is smaller than the sum of its proper divisors (40667502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30130386 is a wasteful number, since it uses less digits than its factorization.

30130386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35146.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30130386 is about 5489.1152292514. The cubic root of 30130386 is about 311.1727551413.

Adding to 30130386 its reverse (68303103), we get a palindrome (98433489).

The spelling of 30130386 in words is "thirty million, one hundred thirty thousand, three hundred eighty-six".

Divisors: 1 2 3 6 11 13 22 26 33 39 66 78 143 286 429 858 35117 70234 105351 210702 386287 456521 772574 913042 1158861 1369563 2317722 2739126 5021731 10043462 15065193 30130386