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68320200 = 233521319461
BaseRepresentation
bin1000001001001…
…11101111001000
311202120000200210
410010213233020
5114442221300
610440201120
71456466154
oct404475710
9152500623
1068320200
1135623a83
121aa691a0
1311201070
149106064
155ee8050
hex4127bc8

68320200 has 192 divisors, whose sum is σ = 240609600. Its totient is φ = 15897600.

The previous prime is 68320193. The next prime is 68320207. The reversal of 68320200 is 202386.

It is an interprime number because it is at equal distance from previous prime (68320193) and next prime (68320207).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68320207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147970 + ... + 148430.

It is an arithmetic number, because the mean of its divisors is an integer number (1253175).

Almost surely, 268320200 is an apocalyptic number.

68320200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68320200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120304800).

68320200 is an abundant number, since it is smaller than the sum of its proper divisors (172289400).

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

68320200 is a wasteful number, since it uses less digits than its factorization.

68320200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 68320200 is about 8265.6034262478. The cubic root of 68320200 is about 408.8051670156.

Adding to 68320200 its reverse (202386), we get a palindrome (68522586).

The spelling of 68320200 in words is "sixty-eight million, three hundred twenty thousand, two hundred".