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12905329 = 173792003
BaseRepresentation
bin110001001110…
…101101110001
3220021122210011
4301032231301
511300432304
61140334521
7214456603
oct61165561
926248704
1012905329
117314a68
1243a4441
13289b0b8
1419dd173
1511edc04
hexc4eb71

12905329 has 8 divisors (see below), whose sum is σ = 13707360. Its totient is φ = 12108096.

The previous prime is 12905311. The next prime is 12905381. The reversal of 12905329 is 92350921.

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 12905329 - 211 = 12903281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12905329.

It is not an unprimeable number, because it can be changed into a prime (12905429) 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 7 ways as a sum of consecutive naturals, for example, 5442 + ... + 7444.

It is an arithmetic number, because the mean of its divisors is an integer number (1713420).

Almost surely, 212905329 is an apocalyptic number.

It is an amenable number.

12905329 is a deficient number, since it is larger than the sum of its proper divisors (802031).

12905329 is a wasteful number, since it uses less digits than its factorization.

12905329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 12905329 is about 3592.3987807592. The cubic root of 12905329 is about 234.5613001470.

The spelling of 12905329 in words is "twelve million, nine hundred five thousand, three hundred twenty-nine".

Divisors: 1 17 379 2003 6443 34051 759137 12905329