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344421064 = 23133311741
BaseRepresentation
bin10100100001110…
…111001011001000
3220000002101212201
4110201313023020
51201132433224
654102045544
711351350021
oct2441671310
9800071781
10344421064
11167464709
12974198b4
1356481a60
1433a57c48
1520385a44
hex148772c8

344421064 has 16 divisors (see below), whose sum is σ = 695465820. Its totient is φ = 158963520.

The previous prime is 344421061. The next prime is 344421073. The reversal of 344421064 is 460124443.

It can be written as a sum of positive squares in 2 ways, for example, as 342620100 + 1800964 = 18510^2 + 1342^2 .

It is not an unprimeable number, because it can be changed into a prime (344421061) 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 3 ways as a sum of consecutive naturals, for example, 1655767 + ... + 1655974.

Almost surely, 2344421064 is an apocalyptic number.

It is an amenable number.

344421064 is an abundant number, since it is smaller than the sum of its proper divisors (351044756).

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

344421064 is a wasteful number, since it uses less digits than its factorization.

344421064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311760 (or 3311756 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 344421064 is about 18558.5846443095. The cubic root of 344421064 is about 700.9653782276.

The spelling of 344421064 in words is "three hundred forty-four million, four hundred twenty-one thousand, sixty-four".

Divisors: 1 2 4 8 13 26 52 104 3311741 6623482 13246964 26493928 43052633 86105266 172210532 344421064