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68664014 = 2169720231
BaseRepresentation
bin1000001011110…
…11101011001110
311210012111022122
410011323223032
5120034222024
610451412542
71462430426
oct405735316
9153174278
1068664014
1135839321
121abb4152
13112c16c3
149195486
156064d5e
hex417bace

68664014 has 8 divisors (see below), whose sum is σ = 103061808. Its totient is φ = 34310080.

The previous prime is 68663999. The next prime is 68664017. The reversal of 68664014 is 41046686.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68664017) 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, 6722 + ... + 13509.

It is an arithmetic number, because the mean of its divisors is an integer number (12882726).

Almost surely, 268664014 is an apocalyptic number.

68664014 is a deficient number, since it is larger than the sum of its proper divisors (34397794).

68664014 is a wasteful number, since it uses less digits than its factorization.

68664014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21930.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 68664014 is about 8286.3752027047. The cubic root of 68664014 is about 409.4897757852.

The spelling of 68664014 in words is "sixty-eight million, six hundred sixty-four thousand, fourteen".

Divisors: 1 2 1697 3394 20231 40462 34332007 68664014