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68178873 = 373246613
BaseRepresentation
bin1000001000001…
…01001110111001
311202021211211110
410010011032321
5114423210443
610433150533
71455340140
oct404051671
9152254743
1068178873
1135537884
121a9bb449
1311181939
1490aa757
155ebb233
hex41053b9

68178873 has 8 divisors (see below), whose sum is σ = 103891648. Its totient is φ = 38959344.

The previous prime is 68178871. The next prime is 68178883. The reversal of 68178873 is 37887186.

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

It is not a de Polignac number, because 68178873 - 21 = 68178871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68178871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1623286 + ... + 1623327.

It is an arithmetic number, because the mean of its divisors is an integer number (12986456).

Almost surely, 268178873 is an apocalyptic number.

It is an amenable number.

68178873 is a deficient number, since it is larger than the sum of its proper divisors (35712775).

68178873 is a wasteful number, since it uses less digits than its factorization.

68178873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246623.

The product of its digits is 451584, while the sum is 48.

The square root of 68178873 is about 8257.0498969063. The cubic root of 68178873 is about 408.5230879645.

The spelling of 68178873 in words is "sixty-eight million, one hundred seventy-eight thousand, eight hundred seventy-three".

Divisors: 1 3 7 21 3246613 9739839 22726291 68178873