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12861941 = 59277787
BaseRepresentation
bin110001000100…
…000111110101
3220012110021012
4301010013311
511243040231
61135402005
7214216241
oct61040765
926173235
1012861941
117295404
124383305
132884421
1419cb421
1511e0e2b
hexc441f5

12861941 has 8 divisors (see below), whose sum is σ = 13143840. Its totient is φ = 12582288.

The previous prime is 12861889. The next prime is 12861949. The reversal of 12861941 is 14916821.

12861941 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12861941 - 210 = 12860917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12861898 and 12861907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12861949) 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, 15950 + ... + 16736.

It is an arithmetic number, because the mean of its divisors is an integer number (1642980).

Almost surely, 212861941 is an apocalyptic number.

It is an amenable number.

12861941 is a deficient number, since it is larger than the sum of its proper divisors (281899).

12861941 is an equidigital number, since it uses as much as digits as its factorization.

12861941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123.

The product of its digits is 3456, while the sum is 32.

The square root of 12861941 is about 3586.3548346476. The cubic root of 12861941 is about 234.2981382572.

The spelling of 12861941 in words is "twelve million, eight hundred sixty-one thousand, nine hundred forty-one".

Divisors: 1 59 277 787 16343 46433 217999 12861941