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68727443 = 1093371871
BaseRepresentation
bin1000001100010…
…11001010010011
311210022201022212
410012023022103
5120043234233
610453022335
71463113361
oct406131223
9153281285
1068727443
1135881a44
121b0249ab
1311314535
1491b0631
156078a48
hex418b293

68727443 has 8 divisors (see below), whose sum is σ = 69600960. Its totient is φ = 67858560.

The previous prime is 68727431. The next prime is 68727457. The reversal of 68727443 is 34472786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68727443 - 210 = 68726419 is a prime.

It is a super-2 number, since 2×687274432 = 9446922842636498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68727443.

It is not an unprimeable number, because it can be changed into a prime (68727343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35798 + ... + 37668.

It is an arithmetic number, because the mean of its divisors is an integer number (8700120).

Almost surely, 268727443 is an apocalyptic number.

68727443 is a deficient number, since it is larger than the sum of its proper divisors (873517).

68727443 is a wasteful number, since it uses less digits than its factorization.

68727443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317.

The product of its digits is 225792, while the sum is 41.

The square root of 68727443 is about 8290.2016260161. The cubic root of 68727443 is about 409.6158269330.

The spelling of 68727443 in words is "sixty-eight million, seven hundred twenty-seven thousand, four hundred forty-three".

Divisors: 1 109 337 1871 36733 203939 630527 68727443