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30118856 = 2331121447
BaseRepresentation
bin111001011100…
…1001111001000
32002200012022012
41302321033020
530202300411
62553315052
7514002035
oct162711710
962605265
1030118856
1116001819
12a105a88
136317111
14400038c
15299e18b
hex1cb93c8

30118856 has 16 divisors (see below), whose sum is σ = 58295040. Its totient is φ = 14573520.

The previous prime is 30118853. The next prime is 30118859. The reversal of 30118856 is 65881103.

It is an interprime number because it is at equal distance from previous prime (30118853) and next prime (30118859).

It is not an unprimeable number, because it can be changed into a prime (30118853) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60476 + ... + 60971.

It is an arithmetic number, because the mean of its divisors is an integer number (3643440).

Almost surely, 230118856 is an apocalyptic number.

It is an amenable number.

30118856 is a deficient number, since it is larger than the sum of its proper divisors (28176184).

30118856 is a wasteful number, since it uses less digits than its factorization.

30118856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121484 (or 121480 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 30118856 is about 5488.0648684213. The cubic root of 30118856 is about 311.1330579000.

Adding to 30118856 its reverse (65881103), we get a palindrome (95999959).

The spelling of 30118856 in words is "thirty million, one hundred eighteen thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 31 62 124 248 121447 242894 485788 971576 3764857 7529714 15059428 30118856