Search a number
-
+
68617343 is a prime number
BaseRepresentation
bin1000001011100…
…00010001111111
311210010010022002
410011300101333
5120031223333
610450412515
71462144364
oct405602177
9153103262
1068617343
1135807253
121ab9113b
13112a63a2
14918246b
1560560e8
hex417047f

68617343 has 2 divisors, whose sum is σ = 68617344. Its totient is φ = 68617342.

The previous prime is 68617319. The next prime is 68617361. The reversal of 68617343 is 34371686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68617343 - 224 = 51840127 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 68617297 and 68617306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68617543) 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 as a sum of consecutive naturals, namely, 34308671 + 34308672.

It is an arithmetic number, because the mean of its divisors is an integer number (34308672).

Almost surely, 268617343 is an apocalyptic number.

68617343 is a deficient number, since it is larger than the sum of its proper divisors (1).

68617343 is an equidigital number, since it uses as much as digits as its factorization.

68617343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 68617343 is about 8283.5585951933. The cubic root of 68617343 is about 409.3969778850.

The spelling of 68617343 in words is "sixty-eight million, six hundred seventeen thousand, three hundred forty-three".