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68635758 = 2311439293
BaseRepresentation
bin1000001011101…
…00110001101110
311210011001120010
410011310301232
5120032321013
610451034050
71462252152
oct405646156
9153131503
1068635758
113581a074
121ab9b926
13112b1899
149189062
15605b7c3
hex4174c6e

68635758 has 8 divisors (see below), whose sum is σ = 137271528. Its totient is φ = 22878584.

The previous prime is 68635757. The next prime is 68635759. The reversal of 68635758 is 85753686.

It is an interprime number because it is at equal distance from previous prime (68635757) and next prime (68635759).

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

68635758 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68635751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5719641 + ... + 5719652.

It is an arithmetic number, because the mean of its divisors is an integer number (17158941).

Almost surely, 268635758 is an apocalyptic number.

68635758 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68635758 is a wasteful number, since it uses less digits than its factorization.

68635758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11439298.

The product of its digits is 1209600, while the sum is 48.

The square root of 68635758 is about 8284.6700598153. The cubic root of 68635758 is about 409.4335982237.

It can be divided in two parts, 6863 and 5758, that added together give a palindrome (12621).

The spelling of 68635758 in words is "sixty-eight million, six hundred thirty-five thousand, seven hundred fifty-eight".

Divisors: 1 2 3 6 11439293 22878586 34317879 68635758