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68360689 = 1719211643
BaseRepresentation
bin1000001001100…
…01100111110001
311202122002020101
410010301213301
5120000020224
610441112401
71460025205
oct404614761
9152562211
1068360689
1135651441
121aa88701
1311216617
149116b05
156005044
hex41319f1

68360689 has 8 divisors (see below), whose sum is σ = 76191840. Its totient is φ = 60952896.

The previous prime is 68360683. The next prime is 68360693. The reversal of 68360689 is 98606386.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68360689 - 25 = 68360657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68360683) 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, 105499 + ... + 106144.

It is an arithmetic number, because the mean of its divisors is an integer number (9523980).

Almost surely, 268360689 is an apocalyptic number.

It is an amenable number.

68360689 is a deficient number, since it is larger than the sum of its proper divisors (7831151).

68360689 is a wasteful number, since it uses less digits than its factorization.

68360689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211679.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 68360689 is about 8268.0523099458. The cubic root of 68360689 is about 408.8859086005.

The spelling of 68360689 in words is "sixty-eight million, three hundred sixty thousand, six hundred eighty-nine".

Divisors: 1 17 19 323 211643 3597931 4021217 68360689