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12406844 = 2223134857
BaseRepresentation
bin101111010101…
…000000111100
3212100022222202
4233111000330
511134004334
61121531032
7210312362
oct57250074
925308882
1012406844
11700449a
1241a3a78
132755238
14190d632
15115117e
hexbd503c

12406844 has 12 divisors (see below), whose sum is σ = 22656144. Its totient is φ = 5933664.

The previous prime is 12406843. The next prime is 12406847. The reversal of 12406844 is 44860421.

12406844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406841) 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, 67337 + ... + 67520.

It is an arithmetic number, because the mean of its divisors is an integer number (1888012).

Almost surely, 212406844 is an apocalyptic number.

It is an amenable number.

12406844 is a deficient number, since it is larger than the sum of its proper divisors (10249300).

12406844 is a wasteful number, since it uses less digits than its factorization.

12406844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134884 (or 134882 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 12406844 is about 3522.3350209769. The cubic root of 12406844 is about 231.5014810815.

The spelling of 12406844 in words is "twelve million, four hundred six thousand, eight hundred forty-four".

Divisors: 1 2 4 23 46 92 134857 269714 539428 3101711 6203422 12406844