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12876838 = 2131912593
BaseRepresentation
bin110001000111…
…110000100110
3220020012200221
4301013300212
511244024323
61135554554
7214310542
oct61076046
926205627
1012876838
1172a5617
12438ba5a
13288b140
1419d2a22
1511e555d
hexc47c26

12876838 has 16 divisors (see below), whose sum is σ = 20918016. Its totient is φ = 5909760.

The previous prime is 12876833. The next prime is 12876839. The reversal of 12876838 is 83867821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12876794 and 12876803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12876833) 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 7 ways as a sum of consecutive naturals, for example, 3670 + ... + 6262.

It is an arithmetic number, because the mean of its divisors is an integer number (1307376).

Almost surely, 212876838 is an apocalyptic number.

12876838 is a deficient number, since it is larger than the sum of its proper divisors (8041178).

12876838 is a wasteful number, since it uses less digits than its factorization.

12876838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799.

The product of its digits is 129024, while the sum is 43.

The square root of 12876838 is about 3588.4311335178. The cubic root of 12876838 is about 234.3885598792.

The spelling of 12876838 in words is "twelve million, eight hundred seventy-six thousand, eight hundred thirty-eight".

Divisors: 1 2 13 26 191 382 2483 2593 4966 5186 33709 67418 495263 990526 6438419 12876838