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43425 = 3252193
BaseRepresentation
bin1010100110100001
32012120100
422212201
52342200
6533013
7240414
oct124641
965510
1043425
112a698
1221169
13169c5
1411b7b
15cd00
hexa9a1

43425 has 18 divisors (see below), whose sum is σ = 78182. Its totient is φ = 23040.

The previous prime is 43411. The next prime is 43427. The reversal of 43425 is 52434.

43425 = T46 + T47 + ... + T70.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 576 + 42849 = 24^2 + 207^2 .

It is not a de Polignac number, because 43425 - 215 = 10657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 43398 and 43407.

It is not an unprimeable number, because it can be changed into a prime (43427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 129 + ... + 321.

243425 is an apocalyptic number.

43425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43425 is a deficient number, since it is larger than the sum of its proper divisors (34757).

43425 is a wasteful number, since it uses less digits than its factorization.

43425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 201 counting only the distinct ones).

The product of its digits is 480, while the sum is 18.

The square root of 43425 is about 208.3866598417. The cubic root of 43425 is about 35.1490244410.

Adding to 43425 its reverse (52434), we get a palindrome (95859).

Subtracting 43425 from its reverse (52434), we obtain a palindrome (9009).

The spelling of 43425 in words is "forty-three thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 193 225 579 965 1737 2895 4825 8685 14475 43425