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11221446444 = 2231371932349
BaseRepresentation
bin10100111001101100…
…11010111100101100
31001222001010112122120
422130312122330230
5140440142241234
65053254312540
7545035502205
oct123466327454
931861115576
1011221446444
11483923988a
122212058750
13109aa80550
147864765ac
1545a233049
hex29cd9af2c

11221446444 has 24 divisors (see below), whose sum is σ = 28197481200. Its totient is φ = 3452752704.

The previous prime is 11221446391. The next prime is 11221446463. The reversal of 11221446444 is 44464412211.

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 35966019 + ... + 35966330.

It is an arithmetic number, because the mean of its divisors is an integer number (1174895050).

Almost surely, 211221446444 is an apocalyptic number.

It is an amenable number.

11221446444 is an abundant number, since it is smaller than the sum of its proper divisors (16976034756).

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

11221446444 is a wasteful number, since it uses less digits than its factorization.

11221446444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71932369 (or 71932367 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

Adding to 11221446444 its reverse (44464412211), we get a palindrome (55685858655).

The spelling of 11221446444 in words is "eleven billion, two hundred twenty-one million, four hundred forty-six thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 71932349 143864698 215797047 287729396 431594094 863188188 935120537 1870241074 2805361611 3740482148 5610723222 11221446444