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12906007 = 37348811
BaseRepresentation
bin110001001110…
…111000010111
3220021200201021
4301032320113
511300443012
61140342011
7214461562
oct61167027
926250637
1012906007
117315524
1243a4907
13289b4ba
1419dd4d9
1511ee007
hexc4ee17

12906007 has 4 divisors (see below), whose sum is σ = 13254856. Its totient is φ = 12557160.

The previous prime is 12906001. The next prime is 12906017. The reversal of 12906007 is 70060921.

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 12906007 - 23 = 12905999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12906001) 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, 174369 + ... + 174442.

It is an arithmetic number, because the mean of its divisors is an integer number (3313714).

Almost surely, 212906007 is an apocalyptic number.

12906007 is a deficient number, since it is larger than the sum of its proper divisors (348849).

12906007 is an equidigital number, since it uses as much as digits as its factorization.

12906007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348848.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12906007 is about 3592.4931454354. The cubic root of 12906007 is about 234.5654077467.

Adding to 12906007 its reverse (70060921), we get a palindrome (82966928).

The spelling of 12906007 in words is "twelve million, nine hundred six thousand, seven".

Divisors: 1 37 348811 12906007