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2200111212 = 2231383169919
BaseRepresentation
bin1000001100100011…
…0000100001101100
312200022220020012110
42003020300201230
514001212024322
61002152004020
7105343431255
oct20310604154
95608806173
102200111212
11a299a6132
12514990610
13290a70170
1416c2a9b2c
15cd23ec0c
hex8323086c

2200111212 has 48 divisors (see below), whose sum is σ = 5595125760. Its totient is φ = 668797248.

The previous prime is 2200111201. The next prime is 2200111247. The reversal of 2200111212 is 2121110022.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 15 ways as a sum of consecutive naturals, for example, 72012 + ... + 97907.

It is an arithmetic number, because the mean of its divisors is an integer number (116565120).

Almost surely, 22200111212 is an apocalyptic number.

It is an amenable number.

2200111212 is an abundant number, since it is smaller than the sum of its proper divisors (3395014548).

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

2200111212 is a wasteful number, since it uses less digits than its factorization.

2200111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170022 (or 170020 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2200111212 is about 46905.3431071557. The cubic root of 2200111212 is about 1300.6133618421.

Adding to 2200111212 its reverse (2121110022), we get a palindrome (4321221234).

The spelling of 2200111212 in words is "two billion, two hundred million, one hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 83 156 166 249 332 498 996 1079 2158 3237 4316 6474 12948 169919 339838 509757 679676 1019514 2039028 2208947 4417894 6626841 8835788 13253682 14103277 26507364 28206554 42309831 56413108 84619662 169239324 183342601 366685202 550027803 733370404 1100055606 2200111212