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68346565 = 574345413
BaseRepresentation
bin1000001001011…
…10001011000101
311202121100212021
410010232023011
5114444042230
610440523141
71456636060
oct404561305
9152540767
1068346565
1135641871
121aa804b1
1311210071
1491118d7
156000c7a
hex412e2c5

68346565 has 16 divisors (see below), whose sum is σ = 95914368. Its totient is φ = 45775296.

The previous prime is 68346563. The next prime is 68346569. The reversal of 68346565 is 56564386.

It is not a de Polignac number, because 68346565 - 21 = 68346563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68346563) 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, 21202 + ... + 24211.

It is an arithmetic number, because the mean of its divisors is an integer number (5994648).

Almost surely, 268346565 is an apocalyptic number.

It is an amenable number.

68346565 is a deficient number, since it is larger than the sum of its proper divisors (27567803).

68346565 is a wasteful number, since it uses less digits than its factorization.

68346565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45468.

The product of its digits is 518400, while the sum is 43.

The square root of 68346565 is about 8267.1981347975. The cubic root of 68346565 is about 408.8577466923.

The spelling of 68346565 in words is "sixty-eight million, three hundred forty-six thousand, five hundred sixty-five".

Divisors: 1 5 7 35 43 215 301 1505 45413 227065 317891 1589455 1952759 9763795 13669313 68346565