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68449182 = 2353215249
BaseRepresentation
bin1000001010001…
…11001110011110
311202210120121220
410011013032132
5120010333212
610443034210
71460544204
oct405071636
9152716556
1068449182
113570197a
121ab0b966
1311247999
14913b074
15602138c
hex414739e

68449182 has 16 divisors (see below), whose sum is σ = 139482000. Its totient is φ = 22385792.

The previous prime is 68449159. The next prime is 68449189. The reversal of 68449182 is 28194486.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68449189) 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, 107307 + ... + 107942.

It is an arithmetic number, because the mean of its divisors is an integer number (8717625).

Almost surely, 268449182 is an apocalyptic number.

68449182 is an abundant number, since it is smaller than the sum of its proper divisors (71032818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68449182 is a wasteful number, since it uses less digits than its factorization.

68449182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215307.

The product of its digits is 110592, while the sum is 42.

The square root of 68449182 is about 8273.4020813689. The cubic root of 68449182 is about 409.0622669689.

The spelling of 68449182 in words is "sixty-eight million, four hundred forty-nine thousand, one hundred eighty-two".

Divisors: 1 2 3 6 53 106 159 318 215249 430498 645747 1291494 11408197 22816394 34224591 68449182