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68468865 = 354564591
BaseRepresentation
bin1000001010011…
…00000010000001
311202211120121220
410011030002001
5120012000430
610443305253
71460655453
oct405140201
9152746556
1068468865
1135715743
121ab1b229
131125392a
1491442d3
156027110
hex414c081

68468865 has 8 divisors (see below), whose sum is σ = 109550208. Its totient is φ = 36516720.

The previous prime is 68468821. The next prime is 68468891. The reversal of 68468865 is 56886486.

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

It is not a de Polignac number, because 68468865 - 220 = 67420289 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2282281 + ... + 2282310.

It is an arithmetic number, because the mean of its divisors is an integer number (13693776).

Almost surely, 268468865 is an apocalyptic number.

It is an amenable number.

68468865 is a deficient number, since it is larger than the sum of its proper divisors (41081343).

68468865 is a wasteful number, since it uses less digits than its factorization.

68468865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564599.

The product of its digits is 2211840, while the sum is 51.

The square root of 68468865 is about 8274.5915307041. The cubic root of 68468865 is about 409.1014727014.

The spelling of 68468865 in words is "sixty-eight million, four hundred sixty-eight thousand, eight hundred sixty-five".

Divisors: 1 3 5 15 4564591 13693773 22822955 68468865