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68782343 = 7139223317
BaseRepresentation
bin1000001100110…
…00100100000111
311210102111122012
410012120210013
5120102013333
610454124435
71463432420
oct406304407
9153374565
1068782343
113590a213
121b05071b
1311333516
1491c6647
156089e48
hex4198907

68782343 has 16 divisors (see below), whose sum is σ = 79779840. Its totient is φ = 58085856.

The previous prime is 68782333. The next prime is 68782367. The reversal of 68782343 is 34328786.

It is a cyclic number.

It is not a de Polignac number, because 68782343 - 220 = 67733767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68782343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68782303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216821 + ... + 217137.

It is an arithmetic number, because the mean of its divisors is an integer number (4986240).

Almost surely, 268782343 is an apocalyptic number.

68782343 is a deficient number, since it is larger than the sum of its proper divisors (10997497).

68782343 is a wasteful number, since it uses less digits than its factorization.

68782343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686.

The product of its digits is 193536, while the sum is 41.

The square root of 68782343 is about 8293.5121028428. The cubic root of 68782343 is about 409.7248659754.

The spelling of 68782343 in words is "sixty-eight million, seven hundred eighty-two thousand, three hundred forty-three".

Divisors: 1 7 139 223 317 973 1561 2219 30997 44063 70691 216979 308441 494837 9826049 68782343