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68016255 = 354534417
BaseRepresentation
bin1000000110111…
…01100001111111
311201222120202120
410003131201333
5114403010010
610425454023
71454062056
oct403354177
9151876676
1068016255
113543668a
121a941313
1311125908
14906739d
155e87e70
hex40dd87f

68016255 has 8 divisors (see below), whose sum is σ = 108826032. Its totient is φ = 36275328.

The previous prime is 68016211. The next prime is 68016283. The reversal of 68016255 is 55261086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68016255 - 212 = 68012159 is a prime.

It is a super-3 number, since 3×680162553 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2267194 + ... + 2267223.

It is an arithmetic number, because the mean of its divisors is an integer number (13603254).

Almost surely, 268016255 is an apocalyptic number.

68016255 is a deficient number, since it is larger than the sum of its proper divisors (40809777).

68016255 is a wasteful number, since it uses less digits than its factorization.

68016255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534425.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 68016255 is about 8247.1967964879. The cubic root of 68016255 is about 408.1980307887.

The spelling of 68016255 in words is "sixty-eight million, sixteen thousand, two hundred fifty-five".

Divisors: 1 3 5 15 4534417 13603251 22672085 68016255