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344332040 = 23513662177
BaseRepresentation
bin10100100001100…
…001011100001000
3212222220212202112
4110201201130020
51201122111130
654100121452
711350526333
oct2441413410
9788825675
10344332040
11167403838
1297396288
1356450390
1433a3361a
1520369495
hex14861708

344332040 has 32 divisors (see below), whose sum is σ = 834344280. Its totient is φ = 127137792.

The previous prime is 344332033. The next prime is 344332049. The reversal of 344332040 is 40233443.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 272184004 + 72148036 = 16498^2 + 8494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 344331997 and 344332015.

It is not an unprimeable number, because it can be changed into a prime (344332049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330569 + ... + 331608.

Almost surely, 2344332040 is an apocalyptic number.

It is an amenable number.

344332040 is an abundant number, since it is smaller than the sum of its proper divisors (490012240).

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

344332040 is a wasteful number, since it uses less digits than its factorization.

344332040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662201 (or 662197 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 344332040 is about 18556.1860305398. The cubic root of 344332040 is about 700.9049791738.

Adding to 344332040 its reverse (40233443), we get a palindrome (384565483).

The spelling of 344332040 in words is "three hundred forty-four million, three hundred thirty-two thousand, forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 662177 1324354 2648708 3310885 5297416 6621770 8608301 13243540 17216602 26487080 34433204 43041505 68866408 86083010 172166020 344332040