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3280243 = 8339521
BaseRepresentation
bin1100100000110101110011
320011122122111
430200311303
51314431433
6154150151
736611251
oct14406563
96148574
103280243
11194054a
121122357
138ab095
146155d1
1544bdcd
hex320d73

3280243 has 4 divisors (see below), whose sum is σ = 3319848. Its totient is φ = 3240640.

The previous prime is 3280231. The next prime is 3280279. The reversal of 3280243 is 3420823.

3280243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3420823 = 7488689.

It is a cyclic number.

It is not a de Polignac number, because 3280243 - 213 = 3272051 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3280213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19678 + ... + 19843.

It is an arithmetic number, because the mean of its divisors is an integer number (829962).

Almost surely, 23280243 is an apocalyptic number.

3280243 is a deficient number, since it is larger than the sum of its proper divisors (39605).

3280243 is an equidigital number, since it uses as much as digits as its factorization.

3280243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39604.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3280243 is about 1811.1441135371. The cubic root of 3280243 is about 148.5828459192.

The spelling of 3280243 in words is "three million, two hundred eighty thousand, two hundred forty-three".

Divisors: 1 83 39521 3280243