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68337317 = 191357787
BaseRepresentation
bin1000001001010…
…11111010100101
311202120220011202
410010223322211
5114443243232
610440412245
71456600106
oct404537245
9152526152
1068337317
1135635924
121aa77085
1311208aa9
14910c3ad
155eed162
hex412bea5

68337317 has 4 divisors (see below), whose sum is σ = 68695296. Its totient is φ = 67979340.

The previous prime is 68337289. The next prime is 68337323. The reversal of 68337317 is 71373386.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68337317 - 214 = 68320933 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 (68337917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178703 + ... + 179084.

It is an arithmetic number, because the mean of its divisors is an integer number (17173824).

Almost surely, 268337317 is an apocalyptic number.

It is an amenable number.

68337317 is a deficient number, since it is larger than the sum of its proper divisors (357979).

68337317 is a wasteful number, since it uses less digits than its factorization.

68337317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357978.

The product of its digits is 63504, while the sum is 38.

The square root of 68337317 is about 8266.6387969960. The cubic root of 68337317 is about 408.8393049608.

The spelling of 68337317 in words is "sixty-eight million, three hundred thirty-seven thousand, three hundred seventeen".

Divisors: 1 191 357787 68337317