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68324439 = 387725969
BaseRepresentation
bin1000001001010…
…00110001010111
311202120020111210
410010220301113
5114442340224
610440232503
71456514421
oct404506127
9152506453
1068324439
1135627187
121aa6b733
1311202c81
149107811
155ee9429
hex4128c57

68324439 has 8 divisors (see below), whose sum is σ = 91206640. Its totient is φ = 45495936.

The previous prime is 68324429. The next prime is 68324489. The reversal of 68324439 is 93442386.

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

It is not a de Polignac number, because 68324439 - 211 = 68322391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68324397 and 68324406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68324429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10354 + ... + 15615.

It is an arithmetic number, because the mean of its divisors is an integer number (11400830).

Almost surely, 268324439 is an apocalyptic number.

68324439 is a deficient number, since it is larger than the sum of its proper divisors (22882201).

68324439 is a wasteful number, since it uses less digits than its factorization.

68324439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26849.

The product of its digits is 124416, while the sum is 39.

The square root of 68324439 is about 8265.8598463802. The cubic root of 68324439 is about 408.8136217589.

The spelling of 68324439 in words is "sixty-eight million, three hundred twenty-four thousand, four hundred thirty-nine".

Divisors: 1 3 877 2631 25969 77907 22774813 68324439