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68376943 = 531290131
BaseRepresentation
bin1000001001101…
…01100101101111
311202122220112101
410010311211233
5120001030233
610441315531
71460123455
oct404654557
9152586471
1068376943
1135662678
121aa95ba7
1311220b3b
14911c9d5
156009c7d
hex413596f

68376943 has 4 divisors (see below), whose sum is σ = 69667128. Its totient is φ = 67086760.

The previous prime is 68376911. The next prime is 68376947. The reversal of 68376943 is 34967386.

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

It is a cyclic number.

It is not a de Polignac number, because 68376943 - 25 = 68376911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68376893 and 68376902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68376947) 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, 645013 + ... + 645118.

It is an arithmetic number, because the mean of its divisors is an integer number (17416782).

Almost surely, 268376943 is an apocalyptic number.

68376943 is a deficient number, since it is larger than the sum of its proper divisors (1290185).

68376943 is a wasteful number, since it uses less digits than its factorization.

68376943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290184.

The product of its digits is 653184, while the sum is 46.

The square root of 68376943 is about 8269.0351916049. The cubic root of 68376943 is about 408.9183127253.

The spelling of 68376943 in words is "sixty-eight million, three hundred seventy-six thousand, nine hundred forty-three".

Divisors: 1 53 1290131 68376943