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68315235 = 356596911
BaseRepresentation
bin1000001001001…
…10100001100011
311202112202212220
410010212201203
5114442041420
610440122123
71456445532
oct404464143
9152482786
1068315235
113562027a
121aa66343
13111cba21
149104319
155ee6840
hex4126863

68315235 has 16 divisors (see below), whose sum is σ = 109486080. Its totient is φ = 36374240.

The previous prime is 68315207. The next prime is 68315237. The reversal of 68315235 is 53251386.

It is not a de Polignac number, because 68315235 - 29 = 68314723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68315196 and 68315205.

It is not an unprimeable number, because it can be changed into a prime (68315237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6430 + ... + 13340.

It is an arithmetic number, because the mean of its divisors is an integer number (6842880).

Almost surely, 268315235 is an apocalyptic number.

68315235 is a deficient number, since it is larger than the sum of its proper divisors (41170845).

68315235 is a wasteful number, since it uses less digits than its factorization.

68315235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7578.

The product of its digits is 21600, while the sum is 33.

The square root of 68315235 is about 8265.3030797424. The cubic root of 68315235 is about 408.7952638107.

The spelling of 68315235 in words is "sixty-eight million, three hundred fifteen thousand, two hundred thirty-five".

Divisors: 1 3 5 15 659 1977 3295 6911 9885 20733 34555 103665 4554349 13663047 22771745 68315235