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68220110 = 2575991627
BaseRepresentation
bin1000001000011…
…11010011001110
311202100221101202
410010033103032
5114431020420
610434105502
71455601310
oct404172316
9152327352
1068220110
1135565862
121aa1b292
131119763a
1490bb7b0
155ec8575
hex410f4ce

68220110 has 32 divisors (see below), whose sum is σ = 140659200. Its totient is φ = 23336352.

The previous prime is 68220101. The next prime is 68220121. The reversal of 68220110 is 1102286.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41117 + ... + 42743.

It is an arithmetic number, because the mean of its divisors is an integer number (4395600).

Almost surely, 268220110 is an apocalyptic number.

68220110 is an abundant number, since it is smaller than the sum of its proper divisors (72439090).

68220110 is a wasteful number, since it uses less digits than its factorization.

68220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 68220110 is about 8259.5465977256. The cubic root of 68220110 is about 408.6054344479.

Adding to 68220110 its reverse (1102286), we get a palindrome (69322396).

The spelling of 68220110 in words is "sixty-eight million, two hundred twenty thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 70 599 1198 1627 2995 3254 4193 5990 8135 8386 11389 16270 20965 22778 41930 56945 113890 974573 1949146 4872865 6822011 9745730 13644022 34110055 68220110