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11112111230 = 2511225393617
BaseRepresentation
bin10100101100101010…
…10101110001111110
31001200102101201221012
422112111111301332
5140224200024410
65034351035222
7542240246513
oct122625256176
931612351835
1011112111230
114792551700
1221a150bb12
13108121b95c
14775b3530a
15450837605
hex296555c7e

11112111230 has 48 divisors (see below), whose sum is σ = 22000189680. Its totient is φ = 4038059520.

The previous prime is 11112111229. The next prime is 11112111277. The reversal of 11112111230 is 3211121111.

It is a super-2 number, since 2×111121112302 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3070382 + ... + 3073998.

It is an arithmetic number, because the mean of its divisors is an integer number (458337285).

Almost surely, 211112111230 is an apocalyptic number.

11112111230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11112111230 is a deficient number, since it is larger than the sum of its proper divisors (10888078450).

11112111230 is a wasteful number, since it uses less digits than its factorization.

11112111230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185 (or 6174 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11112111230 its reverse (3211121111), we get a palindrome (14323232341).

The spelling of 11112111230 in words is "eleven billion, one hundred twelve million, one hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 121 242 605 1210 2539 3617 5078 7234 12695 18085 25390 27929 36170 39787 55858 79574 139645 198935 279290 307219 397870 437657 614438 875314 1536095 2188285 3072190 4376570 9183563 18367126 45917815 91835630 101019193 202038386 505095965 1010191930 1111211123 2222422246 5556055615 11112111230