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3280433 = 13252341
BaseRepresentation
bin1100100000111000110001
320011122220112
430200320301
51314433213
6154151105
736611642
oct14407061
96148815
103280433
111940702
121122495
138ab1b0
146156c9
1544bea8
hex320e31

3280433 has 4 divisors (see below), whose sum is σ = 3532788. Its totient is φ = 3028080.

The previous prime is 3280423. The next prime is 3280441. The reversal of 3280433 is 3340823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3340823 = 17196519.

It can be written as a sum of positive squares in 2 ways, for example, as 868624 + 2411809 = 932^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 3280433 - 212 = 3276337 is a prime.

It is a super-2 number, since 2×32804332 = 21522481334978, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3280399 and 3280408.

It is not an unprimeable number, because it can be changed into a prime (3280423) 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, 126158 + ... + 126183.

It is an arithmetic number, because the mean of its divisors is an integer number (883197).

Almost surely, 23280433 is an apocalyptic number.

It is an amenable number.

3280433 is a deficient number, since it is larger than the sum of its proper divisors (252355).

3280433 is a wasteful number, since it uses less digits than its factorization.

3280433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252354.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3280433 is about 1811.1965658095. The cubic root of 3280433 is about 148.5857146290.

The spelling of 3280433 in words is "three million, two hundred eighty thousand, four hundred thirty-three".

Divisors: 1 13 252341 3280433