Search a number
-
+
22111103144 = 2313212606761
BaseRepresentation
bin10100100101111011…
…001010100010101000
32010001221221102100002
4110211323022202220
5330240420300034
614054021402132
71411635163364
oct244573124250
963057842302
1022111103144
119417161069
124350b69348
132114b824b0
1410da8222a4
15896277e7e
hex525eca8a8

22111103144 has 16 divisors (see below), whose sum is σ = 44647420020. Its totient is φ = 10205124480.

The previous prime is 22111103123. The next prime is 22111103191. The reversal of 22111103144 is 44130111122.

It can be written as a sum of positive squares in 2 ways, for example, as 20053392100 + 2057711044 = 141610^2 + 45362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106303277 + ... + 106303484.

Almost surely, 222111103144 is an apocalyptic number.

It is an amenable number.

22111103144 is an abundant number, since it is smaller than the sum of its proper divisors (22536316876).

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

22111103144 is a wasteful number, since it uses less digits than its factorization.

22111103144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212606780 (or 212606776 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 22111103144 its reverse (44130111122), we get a palindrome (66241214266).

The spelling of 22111103144 in words is "twenty-two billion, one hundred eleven million, one hundred three thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 26 52 104 212606761 425213522 850427044 1700854088 2763887893 5527775786 11055551572 22111103144