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68676889 = 1723916903
BaseRepresentation
bin1000001011111…
…10110100011001
311210020010222111
410011332310121
5120040130024
610451552321
71462513111
oct405766431
9153203874
1068676889
1135847a66
121abbb6a1
13112c7518
14919a041
156068a94
hex417ed19

68676889 has 8 divisors (see below), whose sum is σ = 73025280. Its totient is φ = 64362816.

The previous prime is 68676859. The next prime is 68676899. The reversal of 68676889 is 98867686.

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

It is not a de Polignac number, because 68676889 - 211 = 68674841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68676859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4389 + ... + 12514.

It is an arithmetic number, because the mean of its divisors is an integer number (9128160).

Almost surely, 268676889 is an apocalyptic number.

It is an amenable number.

68676889 is a deficient number, since it is larger than the sum of its proper divisors (4348391).

68676889 is a wasteful number, since it uses less digits than its factorization.

68676889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17159.

The product of its digits is 6967296, while the sum is 58.

The square root of 68676889 is about 8287.1520439775. The cubic root of 68676889 is about 409.5153682854.

The spelling of 68676889 in words is "sixty-eight million, six hundred seventy-six thousand, eight hundred eighty-nine".

Divisors: 1 17 239 4063 16903 287351 4039817 68676889