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68362873 = 420116273
BaseRepresentation
bin1000001001100…
…10001001111001
311202122012020021
410010302021321
5120000102443
610441130441
71460034445
oct404621171
9152565207
1068362873
1135653047
121aa89a21
1311217607
149117825
1560059ed
hex4132279

68362873 has 4 divisors (see below), whose sum is σ = 68383348. Its totient is φ = 68342400.

The previous prime is 68362859. The next prime is 68362897. The reversal of 68362873 is 37826386.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35964009 + 32398864 = 5997^2 + 5692^2 .

It is a cyclic number.

It is not a de Polignac number, because 68362873 - 213 = 68354681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68362813) 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 3 ways as a sum of consecutive naturals, for example, 3936 + ... + 12337.

It is an arithmetic number, because the mean of its divisors is an integer number (17095837).

Almost surely, 268362873 is an apocalyptic number.

It is an amenable number.

68362873 is a deficient number, since it is larger than the sum of its proper divisors (20475).

68362873 is a wasteful number, since it uses less digits than its factorization.

68362873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20474.

The product of its digits is 290304, while the sum is 43.

The square root of 68362873 is about 8268.1843835270. The cubic root of 68362873 is about 408.8902629418.

The spelling of 68362873 in words is "sixty-eight million, three hundred sixty-two thousand, eight hundred seventy-three".

Divisors: 1 4201 16273 68362873