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68084833 = 569119657
BaseRepresentation
bin1000000111011…
…10010001100001
311202010001211111
410003232101201
5114412203313
610431143321
71454466025
oct403562141
9152101744
1068084833
1135483163
121a974b41
131114abab
149084385
155e9d43d
hex40ee461

68084833 has 4 divisors (see below), whose sum is σ = 68205060. Its totient is φ = 67964608.

The previous prime is 68084789. The next prime is 68084839. The reversal of 68084833 is 33848086.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12909649 + 55175184 = 3593^2 + 7428^2 .

It is a cyclic number.

It is not a de Polignac number, because 68084833 - 213 = 68076641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68084839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59260 + ... + 60397.

It is an arithmetic number, because the mean of its divisors is an integer number (17051265).

Almost surely, 268084833 is an apocalyptic number.

It is an amenable number.

68084833 is a deficient number, since it is larger than the sum of its proper divisors (120227).

68084833 is a wasteful number, since it uses less digits than its factorization.

68084833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120226.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 68084833 is about 8251.3534041392. The cubic root of 68084833 is about 408.3351744838.

The spelling of 68084833 in words is "sixty-eight million, eighty-four thousand, eight hundred thirty-three".

Divisors: 1 569 119657 68084833