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30111323 = 1131227389
BaseRepresentation
bin111001011011…
…1011001011011
32002122210222012
41302313121123
530202030243
62553220135
7513641054
oct162673133
962583865
1030111323
1115aa70a0
12a10164b
136313868
143ddb72b
15299bd18
hex1cb765b

30111323 has 16 divisors (see below), whose sum is σ = 34145280. Its totient is φ = 26306400.

The previous prime is 30111271. The next prime is 30111353. The reversal of 30111323 is 32311103.

It is a cyclic number.

It is not a de Polignac number, because 30111323 - 212 = 30107227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30111298 and 30111307.

It is not an unprimeable number, because it can be changed into a prime (30111353) 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, 77213 + ... + 77601.

It is an arithmetic number, because the mean of its divisors is an integer number (2134080).

Almost surely, 230111323 is an apocalyptic number.

30111323 is a deficient number, since it is larger than the sum of its proper divisors (4033957).

30111323 is a wasteful number, since it uses less digits than its factorization.

30111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 30111323 is about 5487.3785180175. The cubic root of 30111323 is about 311.1071166673.

Adding to 30111323 its reverse (32311103), we get a palindrome (62422426).

It can be divided in two parts, 3011 and 1323, that added together give a palindrome (4334).

The spelling of 30111323 in words is "thirty million, one hundred eleven thousand, three hundred twenty-three".

Divisors: 1 11 31 227 341 389 2497 4279 7037 12059 77407 88303 132649 971333 2737393 30111323