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68386343 = 186736629
BaseRepresentation
bin1000001001101…
…11111000100111
311202200101102112
410010313320213
5120001330333
610441431235
71460163044
oct404677047
9152611375
1068386343
1135669743
121aa9b51b
13112251bc
1491221cb
15600c948
hex4137e27

68386343 has 4 divisors (see below), whose sum is σ = 68424840. Its totient is φ = 68347848.

The previous prime is 68386313. The next prime is 68386411. The reversal of 68386343 is 34368386.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68386343 is a prime.

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 68386343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68386303) 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, 16448 + ... + 20181.

It is an arithmetic number, because the mean of its divisors is an integer number (17106210).

Almost surely, 268386343 is an apocalyptic number.

68386343 is a deficient number, since it is larger than the sum of its proper divisors (38497).

68386343 is a wasteful number, since it uses less digits than its factorization.

68386343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38496.

The product of its digits is 248832, while the sum is 41.

The square root of 68386343 is about 8269.6035576078. The cubic root of 68386343 is about 408.9370503087.

The spelling of 68386343 in words is "sixty-eight million, three hundred eighty-six thousand, three hundred forty-three".

Divisors: 1 1867 36629 68386343