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2111424169 is a prime number
BaseRepresentation
bin111110111011001…
…1100011010101001
312110011000110110011
41331312130122221
513311011033134
6545303051521
7103215544411
oct17566343251
95404013404
102111424169
11993931258
124ab140ba1
1327858aa1a
141605c1641
15c5572264
hex7dd9c6a9

2111424169 has 2 divisors, whose sum is σ = 2111424170. Its totient is φ = 2111424168.

The previous prime is 2111424137. The next prime is 2111424181. The reversal of 2111424169 is 9614241112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1275346944 + 836077225 = 35712^2 + 28915^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111424169 - 25 = 2111424137 is a prime.

It is a super-2 number, since 2×21114241692 = 8916224042874681122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2111424169.

It is not a weakly prime, because it can be changed into another prime (2111464169) by changing a digit.

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 as a sum of consecutive naturals, namely, 1055712084 + 1055712085.

It is an arithmetic number, because the mean of its divisors is an integer number (1055712085).

Almost surely, 22111424169 is an apocalyptic number.

It is an amenable number.

2111424169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111424169 is an equidigital number, since it uses as much as digits as its factorization.

2111424169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 2111424169 is about 45950.2357882960. The cubic root of 2111424169 is about 1282.8971180093.

The spelling of 2111424169 in words is "two billion, one hundred eleven million, four hundred twenty-four thousand, one hundred sixty-nine".