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30031113 = 377092017
BaseRepresentation
bin111001010001…
…1110100001001
32002111201221110
41302203310021
530141443423
62551400533
7513155160
oct162436411
962451843
1030031113
1115a51902
12a083149
1362b61b8
143dba3d7
152983193
hex1ca3d09

30031113 has 16 divisors (see below), whose sum is σ = 45848960. Its totient is φ = 17127936.

The previous prime is 30031063. The next prime is 30031201. The reversal of 30031113 is 31113003.

It is not a de Polignac number, because 30031113 - 26 = 30031049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30031513) 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, 13881 + ... + 15897.

It is an arithmetic number, because the mean of its divisors is an integer number (2865560).

Almost surely, 230031113 is an apocalyptic number.

It is an amenable number.

30031113 is a deficient number, since it is larger than the sum of its proper divisors (15817847).

30031113 is a wasteful number, since it uses less digits than its factorization.

30031113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 30031113 is about 5480.0650543584. The cubic root of 30031113 is about 310.8306305104.

Adding to 30031113 its reverse (31113003), we get a palindrome (61144116).

It can be divided in two parts, 300 and 31113, that added together give a palindrome (31413).

The spelling of 30031113 in words is "thirty million, thirty-one thousand, one hundred thirteen".

Divisors: 1 3 7 21 709 2017 2127 4963 6051 14119 14889 42357 1430053 4290159 10010371 30031113