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68330811 = 3104921713
BaseRepresentation
bin1000001001010…
…10010100111011
311202120120020210
410010222110323
5114443041221
610440322203
71456542123
oct404522473
9152516223
1068330811
1135630a4a
121aa73363
1311205b43
149109c83
155eeb276
hex412a53b

68330811 has 8 divisors (see below), whose sum is σ = 91198800. Its totient is φ = 45508352.

The previous prime is 68330807. The next prime is 68330863. The reversal of 68330811 is 11803386.

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 68330811 - 22 = 68330807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68330111) 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, 7710 + ... + 14003.

It is an arithmetic number, because the mean of its divisors is an integer number (11399850).

Almost surely, 268330811 is an apocalyptic number.

68330811 is a deficient number, since it is larger than the sum of its proper divisors (22867989).

68330811 is a wasteful number, since it uses less digits than its factorization.

68330811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22765.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 68330811 is about 8266.2452782385. The cubic root of 68330811 is about 408.8263301419.

The spelling of 68330811 in words is "sixty-eight million, three hundred thirty thousand, eight hundred eleven".

Divisors: 1 3 1049 3147 21713 65139 22776937 68330811