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68042200 = 2352340211
BaseRepresentation
bin1000000111000…
…11110111011000
311202000220100111
410003203313120
5114404322300
610430214104
71454230522
oct403436730
9152026314
1068042200
1135454126
121a954334
1311134675
149072a12
155e909ba
hex40e3dd8

68042200 has 24 divisors (see below), whose sum is σ = 158198580. Its totient is φ = 27216800.

The previous prime is 68042171. The next prime is 68042201. The reversal of 68042200 is 224086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68042201) 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 5 ways as a sum of consecutive naturals, for example, 169906 + ... + 170305.

Almost surely, 268042200 is an apocalyptic number.

It is an amenable number.

68042200 is an abundant number, since it is smaller than the sum of its proper divisors (90156380).

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

68042200 is a wasteful number, since it uses less digits than its factorization.

68042200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340227 (or 340218 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 68042200 is about 8248.7696052199. The cubic root of 68042200 is about 408.2499269693.

Adding to 68042200 its reverse (224086), we get a palindrome (68266286).

The spelling of 68042200 in words is "sixty-eight million, forty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 340211 680422 1360844 1701055 2721688 3402110 6804220 8505275 13608440 17010550 34021100 68042200