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68939353 = 719518341
BaseRepresentation
bin1000001101111…
…10111001011001
311210201111000101
410012332321121
5120122024403
610501335401
71464655240
oct406767131
9153644011
1068939353
1135a0717a
121b107561
1311389b22
149227957
1560bb71d
hex41bee59

68939353 has 8 divisors (see below), whose sum is σ = 82934720. Its totient is φ = 55980720.

The previous prime is 68939347. The next prime is 68939357. The reversal of 68939353 is 35393986.

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 68939353 - 29 = 68938841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68939357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259038 + ... + 259303.

It is an arithmetic number, because the mean of its divisors is an integer number (10366840).

Almost surely, 268939353 is an apocalyptic number.

It is an amenable number.

68939353 is a deficient number, since it is larger than the sum of its proper divisors (13995367).

68939353 is a wasteful number, since it uses less digits than its factorization.

68939353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518367.

The product of its digits is 524880, while the sum is 46.

The square root of 68939353 is about 8302.9725400004. The cubic root of 68939353 is about 410.0363897901.

The spelling of 68939353 in words is "sixty-eight million, nine hundred thirty-nine thousand, three hundred fifty-three".

Divisors: 1 7 19 133 518341 3628387 9848479 68939353