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68716317 = 3611133323
BaseRepresentation
bin1000001100010…
…00011100011101
311210022011001210
410012020130131
5120042410232
610452455033
71463036055
oct406103435
9153264053
1068716317
113587464a
121b01a479
131130c457
1491aa565
1560755cc
hex418871d

68716317 has 16 divisors (see below), whose sum is σ = 93976128. Its totient is φ = 44647680.

The previous prime is 68716313. The next prime is 68716321. The reversal of 68716317 is 71361786.

It is an interprime number because it is at equal distance from previous prime (68716313) and next prime (68716321).

It is not a de Polignac number, because 68716317 - 22 = 68716313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68716313) 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 15 ways as a sum of consecutive naturals, for example, 19018 + ... + 22340.

It is an arithmetic number, because the mean of its divisors is an integer number (5873508).

Almost surely, 268716317 is an apocalyptic number.

It is an amenable number.

68716317 is a deficient number, since it is larger than the sum of its proper divisors (25259811).

68716317 is a wasteful number, since it uses less digits than its factorization.

68716317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500.

The product of its digits is 42336, while the sum is 39.

The square root of 68716317 is about 8289.5305657196. The cubic root of 68716317 is about 409.5937220724.

The spelling of 68716317 in words is "sixty-eight million, seven hundred sixteen thousand, three hundred seventeen".

Divisors: 1 3 61 113 183 339 3323 6893 9969 20679 202703 375499 608109 1126497 22905439 68716317