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12104847 = 327871709
BaseRepresentation
bin101110001011…
…010010001111
3211202222201200
4232023102033
511044323342
61111240543
7204614046
oct56132217
924688650
1012104847
116918607
124079153
13267a941
14187155d
1510e194c
hexb8b48f

12104847 has 12 divisors (see below), whose sum is σ = 17517240. Its totient is φ = 8054928.

The previous prime is 12104837. The next prime is 12104863. The reversal of 12104847 is 74840121.

It is not a de Polignac number, because 12104847 - 26 = 12104783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12104847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12104837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6229 + ... + 7937.

It is an arithmetic number, because the mean of its divisors is an integer number (1459770).

Almost surely, 212104847 is an apocalyptic number.

12104847 is a deficient number, since it is larger than the sum of its proper divisors (5412393).

12104847 is a wasteful number, since it uses less digits than its factorization.

12104847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502 (or 2499 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 12104847 is about 3479.2020636922. The cubic root of 12104847 is about 229.6076929177.

Adding to 12104847 its reverse (74840121), we get a palindrome (86944968).

The spelling of 12104847 in words is "twelve million, one hundred four thousand, eight hundred forty-seven".

Divisors: 1 3 9 787 1709 2361 5127 7083 15381 1344983 4034949 12104847