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68775017 = 438917971
BaseRepresentation
bin1000001100101…
…10110001101001
311210102010120212
410012112301221
5120101300032
610454030505
71463402153
oct406266151
9153363525
1068775017
1135904763
121b048435
131133009c
1491c3ad3
156087bb2
hex4196c69

68775017 has 8 divisors (see below), whose sum is σ = 71169120. Its totient is φ = 66417120.

The previous prime is 68775001. The next prime is 68775029. The reversal of 68775017 is 71057786.

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 68775017 - 24 = 68775001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68075017) 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, 5159 + ... + 12812.

It is an arithmetic number, because the mean of its divisors is an integer number (8896140).

Almost surely, 268775017 is an apocalyptic number.

It is an amenable number.

68775017 is a deficient number, since it is larger than the sum of its proper divisors (2394103).

68775017 is a wasteful number, since it uses less digits than its factorization.

68775017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18103.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 68775017 is about 8293.0704205379. The cubic root of 68775017 is about 409.7103188750.

The spelling of 68775017 in words is "sixty-eight million, seven hundred seventy-five thousand, seventeen".

Divisors: 1 43 89 3827 17971 772753 1599419 68775017