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1144422222 = 23211903967
BaseRepresentation
bin100010000110110…
…0111111101001110
32221202102200011020
41010031213331032
54320433002342
6305320535010
740234266636
oct10415477516
92852380136
101144422222
11537aa6399
1227b321466
13153135318
14abdc36c6
156a70d0ec
hex44367f4e

1144422222 has 16 divisors (see below), whose sum is σ = 2299694592. Its totient is φ = 379665720.

The previous prime is 1144422197. The next prime is 1144422229. The reversal of 1144422222 is 2222244411.

It is a happy number.

1144422222 is a modest number, since divided by 22222 gives 11444 as remainder.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1144422192 and 1144422201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144422229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 450718 + ... + 453249.

It is an arithmetic number, because the mean of its divisors is an integer number (143730912).

Almost surely, 21144422222 is an apocalyptic number.

1144422222 is an abundant number, since it is smaller than the sum of its proper divisors (1155272370).

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

1144422222 is a wasteful number, since it uses less digits than its factorization.

1144422222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904183.

The product of its digits is 2048, while the sum is 24.

The square root of 1144422222 is about 33829.3101023358. The cubic root of 1144422222 is about 1045.9929580423.

Adding to 1144422222 its reverse (2222244411), we get a palindrome (3366666633).

The spelling of 1144422222 in words is "one billion, one hundred forty-four million, four hundred twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 211 422 633 1266 903967 1807934 2711901 5423802 190737037 381474074 572211111 1144422222