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68051343 = 322683781
BaseRepresentation
bin1000000111001…
…10000110001111
311202001100220010
410003212012033
5114410120333
610430324303
71454266263
oct403460617
9152040803
1068051343
113545aa88
121a959693
1311138889
1490760a3
155e93563
hex40e618f

68051343 has 4 divisors (see below), whose sum is σ = 90735128. Its totient is φ = 45367560.

The previous prime is 68051329. The next prime is 68051353. The reversal of 68051343 is 34315086.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68051343 - 29 = 68050831 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 68051343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68051353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11341888 + ... + 11341893.

It is an arithmetic number, because the mean of its divisors is an integer number (22683782).

Almost surely, 268051343 is an apocalyptic number.

68051343 is a deficient number, since it is larger than the sum of its proper divisors (22683785).

68051343 is a wasteful number, since it uses less digits than its factorization.

68051343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22683784.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 68051343 is about 8249.3237904691. The cubic root of 68051343 is about 408.2682120038.

The spelling of 68051343 in words is "sixty-eight million, fifty-one thousand, three hundred forty-three".

Divisors: 1 3 22683781 68051343