Search a number
-
+
311122002222 = 232103926636247
BaseRepresentation
bin1001000011100000101…
…00010000000100101110
31002202001121221021120100
410201300110100010232
520044134213032342
6354532200131530
731322615245653
oct4416024200456
91082047837510
10311122002222
1110aa45294179
125036a166ba6
1323453101605
14110b62cdc2a
15815dcebe4c
hex487051012e

311122002222 has 48 divisors (see below), whose sum is σ = 675107896320. Its totient is φ = 103552034256.

The previous prime is 311122002181. The next prime is 311122002239. The reversal of 311122002222 is 222200221113.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 311122002195 and 311122002204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49800303 + ... + 49806549.

It is an arithmetic number, because the mean of its divisors is an integer number (14064747840).

Almost surely, 2311122002222 is an apocalyptic number.

311122002222 is an abundant number, since it is smaller than the sum of its proper divisors (363985894098).

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

311122002222 is a wasteful number, since it uses less digits than its factorization.

311122002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9957 (or 9954 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 311122002222 its reverse (222200221113), we get a palindrome (533322223335).

The spelling of 311122002222 in words is "three hundred eleven billion, one hundred twenty-two million, two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 1039 2078 2663 3117 5326 6234 6247 7989 9351 12494 15978 18702 18741 23967 37482 47934 56223 112446 2766857 5533714 6490633 8300571 12981266 16601142 16635761 19471899 24901713 33271522 38943798 49803426 49907283 58415697 99814566 116831394 149721849 299443698 17284555679 34569111358 51853667037 103707334074 155561001111 311122002222