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68467444 = 2285719973
BaseRepresentation
bin1000001010010…
…11101011110100
311202211111200021
410011023223310
5120011424234
610443254524
71460651353
oct405135364
9152744607
1068467444
1135714671
121ab1a444
13112530a6
14914399a
1560269b4
hex414baf4

68467444 has 12 divisors (see below), whose sum is σ = 119963844. Its totient is φ = 34192064.

The previous prime is 68467429. The next prime is 68467453. The reversal of 68467444 is 44476486.

It can be written as a sum of positive squares in 2 ways, for example, as 47196900 + 21270544 = 6870^2 + 4612^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68467444.

It is a congruent number.

It is an unprimeable number.

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, 6559 + ... + 13414.

It is an arithmetic number, because the mean of its divisors is an integer number (9996987).

Almost surely, 268467444 is an apocalyptic number.

It is an amenable number.

68467444 is a deficient number, since it is larger than the sum of its proper divisors (51496400).

68467444 is a wasteful number, since it uses less digits than its factorization.

68467444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20834 (or 20832 counting only the distinct ones).

The product of its digits is 516096, while the sum is 43.

The square root of 68467444 is about 8274.5056649929. The cubic root of 68467444 is about 409.0986425235.

The spelling of 68467444 in words is "sixty-eight million, four hundred sixty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 857 1714 3428 19973 39946 79892 17116861 34233722 68467444