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12408233 = 109113837
BaseRepresentation
bin101111010101…
…010110101001
3212100101220012
4233111112221
511134030413
61121541305
7210316415
oct57252651
925311805
1012408233
117005542
1241a4835
132755a66
14190dd45
1511517a8
hexbd55a9

12408233 has 4 divisors (see below), whose sum is σ = 12522180. Its totient is φ = 12294288.

The previous prime is 12408229. The next prime is 12408239. The reversal of 12408233 is 33280421.

12408233 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 5396329 + 7011904 = 2323^2 + 2648^2 .

It is a cyclic number.

It is not a de Polignac number, because 12408233 - 22 = 12408229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12408199 and 12408208.

It is not an unprimeable number, because it can be changed into a prime (12408239) 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, 56810 + ... + 57027.

It is an arithmetic number, because the mean of its divisors is an integer number (3130545).

Almost surely, 212408233 is an apocalyptic number.

It is an amenable number.

12408233 is a deficient number, since it is larger than the sum of its proper divisors (113947).

12408233 is a wasteful number, since it uses less digits than its factorization.

12408233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113946.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12408233 is about 3522.5321858004. The cubic root of 12408233 is about 231.5101199575.

Adding to 12408233 its reverse (33280421), we get a palindrome (45688654).

The spelling of 12408233 in words is "twelve million, four hundred eight thousand, two hundred thirty-three".

Divisors: 1 109 113837 12408233