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344422340 = 22517221117
BaseRepresentation
bin10100100001110…
…111011111000100
3220000002110121222
4110201313133010
51201133003330
654102055512
711351353523
oct2441673704
9800073558
10344422340
11167465669
129741a598
1356482502
1433a584ba
15203860e5
hex148777c4

344422340 has 12 divisors (see below), whose sum is σ = 723286956. Its totient is φ = 137768928.

The previous prime is 344422327. The next prime is 344422343. The reversal of 344422340 is 43224443.

It can be written as a sum of positive squares in 2 ways, for example, as 196897024 + 147525316 = 14032^2 + 12146^2 .

It is not an unprimeable number, because it can be changed into a prime (344422343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8610539 + ... + 8610578.

It is an arithmetic number, because the mean of its divisors is an integer number (60273913).

Almost surely, 2344422340 is an apocalyptic number.

It is an amenable number.

344422340 is an abundant number, since it is smaller than the sum of its proper divisors (378864616).

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

344422340 is a wasteful number, since it uses less digits than its factorization.

344422340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17221126 (or 17221124 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 344422340 is about 18558.6190218992. The cubic root of 344422340 is about 700.9662438645.

Adding to 344422340 its reverse (43224443), we get a palindrome (387646783).

The spelling of 344422340 in words is "three hundred forty-four million, four hundred twenty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 17221117 34442234 68884468 86105585 172211170 344422340