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34443140 = 2252576701
BaseRepresentation
bin1000001101100…
…0111110000100
32101210220002212
42003120332010
532304140030
63230122552
7565522214
oct203307604
971726085
1034443140
1118495706
12b650458
13719c474
144808244
153055595
hex20d8f84

34443140 has 24 divisors (see below), whose sum is σ = 72622872. Its totient is φ = 13721600.

The previous prime is 34443137. The next prime is 34443161. The reversal of 34443140 is 4134443.

It can be written as a sum of positive squares in 4 ways, for example, as 11075584 + 23367556 = 3328^2 + 4834^2 .

It is an unprimeable number.

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, 1790 + ... + 8490.

It is an arithmetic number, because the mean of its divisors is an integer number (3025953).

Almost surely, 234443140 is an apocalyptic number.

It is an amenable number.

34443140 is an abundant number, since it is smaller than the sum of its proper divisors (38179732).

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

34443140 is a wasteful number, since it uses less digits than its factorization.

34443140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6967 (or 6965 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 34443140 is about 5868.8278216353. The cubic root of 34443140 is about 325.3625618541.

Adding to 34443140 its reverse (4134443), we get a palindrome (38577583).

The spelling of 34443140 in words is "thirty-four million, four hundred forty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 257 514 1028 1285 2570 5140 6701 13402 26804 33505 67010 134020 1722157 3444314 6888628 8610785 17221570 34443140