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68484787 = 767146023
BaseRepresentation
bin1000001010011…
…11111010110011
311202212101110121
410011033322303
5120013003122
610443511111
71461053050
oct405177263
9152771417
1068484787
11357266a8
121ab28497
131125ac57
14914a027
15602bbc7
hex414feb3

68484787 has 8 divisors (see below), whose sum is σ = 79437056. Its totient is φ = 57824712.

The previous prime is 68484763. The next prime is 68484791. The reversal of 68484787 is 78748486.

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 68484787 - 27 = 68484659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68484587) 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, 72543 + ... + 73480.

It is an arithmetic number, because the mean of its divisors is an integer number (9929632).

Almost surely, 268484787 is an apocalyptic number.

68484787 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

68484787 is a deficient number, since it is larger than the sum of its proper divisors (10952269).

68484787 is a wasteful number, since it uses less digits than its factorization.

68484787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146097.

The product of its digits is 2408448, while the sum is 52.

The square root of 68484787 is about 8275.5535766497. The cubic root of 68484787 is about 409.1331815606.

The spelling of 68484787 in words is "sixty-eight million, four hundred eighty-four thousand, seven hundred eighty-seven".

Divisors: 1 7 67 469 146023 1022161 9783541 68484787