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12867442 = 272389449
BaseRepresentation
bin110001000101…
…011101110010
3220012201210221
4301011131302
511243224232
61135443254
7214241260
oct61053562
926181727
1012867442
117299555
12438652a
132886a93
1419cd430
1511e2897
hexc45772

12867442 has 32 divisors (see below), whose sum is σ = 23328000. Its totient is φ = 5203968.

The previous prime is 12867433. The next prime is 12867443. The reversal of 12867442 is 24476821.

It is a happy number.

12867442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12867398 and 12867407.

It is not an unprimeable number, because it can be changed into a prime (12867443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28434 + ... + 28882.

It is an arithmetic number, because the mean of its divisors is an integer number (729000).

Almost surely, 212867442 is an apocalyptic number.

12867442 is a deficient number, since it is larger than the sum of its proper divisors (10460558).

12867442 is a wasteful number, since it uses less digits than its factorization.

12867442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its digits is 21504, while the sum is 34.

The square root of 12867442 is about 3587.1216873700. The cubic root of 12867442 is about 234.3315362841.

The spelling of 12867442 in words is "twelve million, eight hundred sixty-seven thousand, four hundred forty-two".

Divisors: 1 2 7 14 23 46 89 161 178 322 449 623 898 1246 2047 3143 4094 6286 10327 14329 20654 28658 39961 72289 79922 144578 279727 559454 919103 1838206 6433721 12867442