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12612471 = 34204157
BaseRepresentation
bin110000000111…
…001101110111
3212201210001120
4300013031313
511212044341
61130155023
7212130024
oct60071567
925653046
1012612471
117134a33
124282a73
1327c7a01
14196454b
151192066
hexc07377

12612471 has 4 divisors (see below), whose sum is σ = 16816632. Its totient is φ = 8408312.

The previous prime is 12612437. The next prime is 12612473. The reversal of 12612471 is 17421621.

12612471 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12612471 - 26 = 12612407 is a prime.

It is a super-3 number, since 3×126124713 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12612473) 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 3 ways as a sum of consecutive naturals, for example, 2102076 + ... + 2102081.

It is an arithmetic number, because the mean of its divisors is an integer number (4204158).

Almost surely, 212612471 is an apocalyptic number.

12612471 is a deficient number, since it is larger than the sum of its proper divisors (4204161).

12612471 is an equidigital number, since it uses as much as digits as its factorization.

12612471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204160.

The product of its digits is 672, while the sum is 24.

The square root of 12612471 is about 3551.4040885261. The cubic root of 12612471 is about 232.7734232660.

The spelling of 12612471 in words is "twelve million, six hundred twelve thousand, four hundred seventy-one".

Divisors: 1 3 4204157 12612471