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344231161 = 312358201
BaseRepresentation
bin10100100001001…
…000110011111001
3212222201202101021
4110201020303321
51201110344121
654054022441
711346626251
oct2441106371
9788652337
10344231161
11167344a6a
1297347a21
13564164a1
1433a08961
1520349641
hex14848cf9

344231161 has 6 divisors (see below), whose sum is σ = 355694586. Its totient is φ = 333126000.

The previous prime is 344231159. The next prime is 344231177. The reversal of 344231161 is 161132443.

It can be written as a sum of positive squares in only one way, i.e., 296012025 + 48219136 = 17205^2 + 6944^2 .

It is not a de Polignac number, because 344231161 - 21 = 344231159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344231191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178140 + ... + 180061.

It is an arithmetic number, because the mean of its divisors is an integer number (59282431).

Almost surely, 2344231161 is an apocalyptic number.

344231161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

344231161 is a deficient number, since it is larger than the sum of its proper divisors (11463425).

344231161 is an equidigital number, since it uses as much as digits as its factorization.

344231161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358263 (or 358232 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 344231161 is about 18553.4676273736. The cubic root of 344231161 is about 700.8365244157.

The spelling of 344231161 in words is "three hundred forty-four million, two hundred thirty-one thousand, one hundred sixty-one".

Divisors: 1 31 961 358201 11104231 344231161