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68065733 = 1914924043
BaseRepresentation
bin1000000111010…
…01100111000101
311202002002122002
410003221213011
5114411100413
610430515045
71454356241
oct403514705
9152062562
1068065733
113546a87a
121a965a85
13111422a8
14907b421
155e97958
hex40e99c5

68065733 has 8 divisors (see below), whose sum is σ = 72132000. Its totient is φ = 64047888.

The previous prime is 68065721. The next prime is 68065757. The reversal of 68065733 is 33756086.

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 68065733 - 28 = 68065477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68065793) 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, 9191 + ... + 14852.

It is an arithmetic number, because the mean of its divisors is an integer number (9016500).

Almost surely, 268065733 is an apocalyptic number.

It is an amenable number.

68065733 is a deficient number, since it is larger than the sum of its proper divisors (4066267).

68065733 is a wasteful number, since it uses less digits than its factorization.

68065733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24211.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 68065733 is about 8250.1959370672. The cubic root of 68065733 is about 408.2969871670.

The spelling of 68065733 in words is "sixty-eight million, sixty-five thousand, seven hundred thirty-three".

Divisors: 1 19 149 2831 24043 456817 3582407 68065733