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12908306 = 229222557
BaseRepresentation
bin110001001111…
…011100010010
3220021210212102
4301033130102
511301031211
61140400402
7214501355
oct61173422
926253772
1012908306
117317224
1243a6102
13289c568
141a0029c
1511eea3b
hexc4f712

12908306 has 8 divisors (see below), whose sum is σ = 20030220. Its totient is φ = 6231568.

The previous prime is 12908279. The next prime is 12908323. The reversal of 12908306 is 60380921.

12908306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11323225 + 1585081 = 3365^2 + 1259^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111221 + ... + 111336.

Almost surely, 212908306 is an apocalyptic number.

12908306 is a deficient number, since it is larger than the sum of its proper divisors (7121914).

12908306 is a wasteful number, since it uses less digits than its factorization.

12908306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222588.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12908306 is about 3592.8131039619. The cubic root of 12908306 is about 234.5793349527.

The spelling of 12908306 in words is "twelve million, nine hundred eight thousand, three hundred six".

Divisors: 1 2 29 58 222557 445114 6454153 12908306