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344279189 = 17109718461
BaseRepresentation
bin10100100001010…
…100100010010101
3212222211012021002
4110201110202111
51201113413224
654055033045
711350216262
oct2441244225
9788735232
10344279189
11167378061
129736b785
13564322c7
1433a1c269
15203589ae
hex14854895

344279189 has 8 divisors (see below), whose sum is σ = 364882968. Its totient is φ = 323714560.

The previous prime is 344279171. The next prime is 344279227. The reversal of 344279189 is 981972443.

It can be written as a sum of positive squares in 4 ways, for example, as 7263025 + 337016164 = 2695^2 + 18358^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-344279189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344279129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9419 + ... + 27879.

It is an arithmetic number, because the mean of its divisors is an integer number (45610371).

Almost surely, 2344279189 is an apocalyptic number.

It is an amenable number.

344279189 is a deficient number, since it is larger than the sum of its proper divisors (20603779).

344279189 is a wasteful number, since it uses less digits than its factorization.

344279189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19575.

The product of its digits is 435456, while the sum is 47.

The square root of 344279189 is about 18554.7618955351. The cubic root of 344279189 is about 700.8691170599.

The spelling of 344279189 in words is "three hundred forty-four million, two hundred seventy-nine thousand, one hundred eighty-nine".

Divisors: 1 17 1097 18461 18649 313837 20251717 344279189