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111230 = 2572227
BaseRepresentation
bin11011001001111110
312122120122
4123021332
512024410
62214542
7642200
oct331176
9178518
10111230
1176629
1254452
133b822
142c770
1522e55
hex1b27e

111230 has 24 divisors (see below), whose sum is σ = 233928. Its totient is φ = 37968.

The previous prime is 111229. The next prime is 111253. The reversal of 111230 is 32111.

Adding to 111230 its reverse (32111), we get a palindrome (143341).

It can be divided in two parts, 11 and 1230, that multiplied together give a triangular number (13530 = T164).

It is a super-2 number, since 2×1112302 = 24744225800, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377 + ... + 603.

It is an arithmetic number, because the mean of its divisors is an integer number (9747).

2111230 is an apocalyptic number.

111230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111230 is an abundant number, since it is smaller than the sum of its proper divisors (122698).

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

111230 is a wasteful number, since it uses less digits than its factorization.

111230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 111230 is about 333.5116189880. The cubic root of 111230 is about 48.0921263098.

The spelling of 111230 in words is "one hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 227 245 454 490 1135 1589 2270 3178 7945 11123 15890 22246 55615 111230