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68501866 = 2231489171
BaseRepresentation
bin1000001010101…
…00000101101010
311202220020220011
410011110011222
5120014024431
610444122134
71461153616
oct405240552
9152806804
1068501866
1135738514
121ab3634a
1311265964
149152346
156031cb1
hex415416a

68501866 has 8 divisors (see below), whose sum is σ = 107220384. Its totient is φ = 32761740.

The previous prime is 68501827. The next prime is 68501869. The reversal of 68501866 is 66810586.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (68501869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744540 + ... + 744631.

It is an arithmetic number, because the mean of its divisors is an integer number (13402548).

Almost surely, 268501866 is an apocalyptic number.

68501866 is a deficient number, since it is larger than the sum of its proper divisors (38718518).

68501866 is a wasteful number, since it uses less digits than its factorization.

68501866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489196.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 68501866 is about 8276.5854070383. The cubic root of 68501866 is about 409.1671891368.

The spelling of 68501866 in words is "sixty-eight million, five hundred one thousand, eight hundred sixty-six".

Divisors: 1 2 23 46 1489171 2978342 34250933 68501866