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68673822 = 2371635091
BaseRepresentation
bin1000001011111…
…10000100011110
311210012222202220
410011332010132
5120040030242
610451530210
71462501140
oct405760436
9153188686
1068673822
1135845728
121abb9966
13112c5cc9
149198c90
156067bec
hex417e11e

68673822 has 16 divisors (see below), whose sum is σ = 156968832. Its totient is φ = 19621080.

The previous prime is 68673821. The next prime is 68673823. The reversal of 68673822 is 22837686.

It is an interprime number because it is at equal distance from previous prime (68673821) and next prime (68673823).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1635091 = 68673822 / (6 + 8 + 6 + 7 + 3 + 8 + 2 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68673821) 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, 817504 + ... + 817587.

It is an arithmetic number, because the mean of its divisors is an integer number (9810552).

Almost surely, 268673822 is an apocalyptic number.

68673822 is an abundant number, since it is smaller than the sum of its proper divisors (88295010).

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

68673822 is a wasteful number, since it uses less digits than its factorization.

68673822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635103.

The product of its digits is 193536, while the sum is 42.

The square root of 68673822 is about 8286.9669964348. The cubic root of 68673822 is about 409.5092720942.

The spelling of 68673822 in words is "sixty-eight million, six hundred seventy-three thousand, eight hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 1635091 3270182 4905273 9810546 11445637 22891274 34336911 68673822