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12533841 = 321392649
BaseRepresentation
bin101111110100…
…000001010001
3212120210012100
4233310001101
511202040331
61124351013
7211351545
oct57640121
925523170
1012533841
117090951
124245469
13279ac98
141943a25
151178ae6
hexbf4051

12533841 has 6 divisors (see below), whose sum is σ = 18104450. Its totient is φ = 8355888.

The previous prime is 12533839. The next prime is 12533869. The reversal of 12533841 is 14833521.

It is a happy number.

12533841 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8433216 + 4100625 = 2904^2 + 2025^2 .

It is not a de Polignac number, because 12533841 - 21 = 12533839 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12533831) 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 5 ways as a sum of consecutive naturals, for example, 696316 + ... + 696333.

Almost surely, 212533841 is an apocalyptic number.

It is an amenable number.

12533841 is a deficient number, since it is larger than the sum of its proper divisors (5570609).

12533841 is a wasteful number, since it uses less digits than its factorization.

12533841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392655 (or 1392652 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 12533841 is about 3540.3165112741. The cubic root of 12533841 is about 232.2886876419.

The spelling of 12533841 in words is "twelve million, five hundred thirty-three thousand, eight hundred forty-one".

Divisors: 1 3 9 1392649 4177947 12533841