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11212012344 = 23313255114087
BaseRepresentation
bin10100111000100100…
…11011101100111000
31001221101101020111110
422130102123230320
5140430233343334
65052320200320
7544562350431
oct123422335470
931841336443
1011212012344
114833985905
12220aa690a0
131098b29440
147850dc488
154594bcae9
hex29c49bb38

11212012344 has 64 divisors (see below), whose sum is σ = 30200163840. Its totient is φ = 3448252800.

The previous prime is 11212012303. The next prime is 11212012373. The reversal of 11212012344 is 44321021211.

11212012344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11212012344.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 788869 + ... + 802955.

It is an arithmetic number, because the mean of its divisors is an integer number (471877560).

Almost surely, 211212012344 is an apocalyptic number.

It is an amenable number.

11212012344 is an abundant number, since it is smaller than the sum of its proper divisors (18988151496).

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

11212012344 is a wasteful number, since it uses less digits than its factorization.

11212012344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16660 (or 16656 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11212012344 its reverse (44321021211), we get a palindrome (55533033555).

The spelling of 11212012344 in words is "eleven billion, two hundred twelve million, twelve thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 2551 5102 7653 10204 14087 15306 20408 28174 30612 33163 42261 56348 61224 66326 84522 99489 112696 132652 169044 183131 198978 265304 338088 366262 397956 549393 732524 795912 1098786 1465048 2197572 4395144 35935937 71871874 107807811 143743748 215615622 287487496 431231244 467167181 862462488 934334362 1401501543 1868668724 2803003086 3737337448 5606006172 11212012344