Search a number
-
+
12923709 = 39474549
BaseRepresentation
bin110001010011…
…001100111101
3220022120222220
4301103030331
511302024314
61140555553
7214564311
oct61231475
926276886
1012923709
117327857
1243b2bb9
1328a6586
141a05b41
1512043a9
hexc5333d

12923709 has 8 divisors (see below), whose sum is σ = 17253600. Its totient is φ = 8604816.

The previous prime is 12923671. The next prime is 12923711. The reversal of 12923709 is 90732921.

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

It is not a de Polignac number, because 12923709 - 28 = 12923453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12923709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12923789) 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, 567 + ... + 5115.

It is an arithmetic number, because the mean of its divisors is an integer number (2156700).

Almost surely, 212923709 is an apocalyptic number.

It is an amenable number.

12923709 is a deficient number, since it is larger than the sum of its proper divisors (4329891).

12923709 is an equidigital number, since it uses as much as digits as its factorization.

12923709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 12923709 is about 3594.9560498009. The cubic root of 12923709 is about 234.6726027880.

The spelling of 12923709 in words is "twelve million, nine hundred twenty-three thousand, seven hundred nine".

Divisors: 1 3 947 2841 4549 13647 4307903 12923709