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2144041111 = 191812832203
BaseRepresentation
bin111111111001011…
…0111100010010111
312112102101120111001
41333302313202113
513342333303421
6552430124131
7104063022502
oct17762674227
95472346431
102144041111
11a00289903
124ba050647
1328226aba4
14164a72139
15c8366691
hex7fcb7897

2144041111 has 16 divisors (see below), whose sum is σ = 2278407040. Its totient is φ = 2011923360.

The previous prime is 2144041093. The next prime is 2144041121. The reversal of 2144041111 is 1111404412.

It is a cyclic number.

It is not a de Polignac number, because 2144041111 - 221 = 2141943959 is a prime.

It is a super-2 number, since 2×21440411112 = 9193824571316228642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144041121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972136 + ... + 974338.

It is an arithmetic number, because the mean of its divisors is an integer number (142400440).

Almost surely, 22144041111 is an apocalyptic number.

2144041111 is a deficient number, since it is larger than the sum of its proper divisors (134365929).

2144041111 is a wasteful number, since it uses less digits than its factorization.

2144041111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 2144041111 is about 46303.7915402184. The cubic root of 2144041111 is about 1289.4693871664.

Adding to 2144041111 its reverse (1111404412), we get a palindrome (3255445523).

The spelling of 2144041111 in words is "two billion, one hundred forty-four million, forty-one thousand, one hundred eleven".

Divisors: 1 19 181 283 2203 3439 5377 41857 51223 398743 623449 973237 7576117 11845531 112844269 2144041111