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68243316 = 22310753149
BaseRepresentation
bin1000001000101…
…00111101110100
311202102010020020
410010110331310
5114432241231
610434405140
71456026051
oct404247564
9152363206
1068243316
1135581239
121aa307b0
13111a507b
1490c6028
155ed0396
hex4114f74

68243316 has 24 divisors (see below), whose sum is σ = 160725600. Its totient is φ = 22534752.

The previous prime is 68243309. The next prime is 68243317. The reversal of 68243316 is 61334286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68243317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25291 + ... + 27858.

It is an arithmetic number, because the mean of its divisors is an integer number (6696900).

Almost surely, 268243316 is an apocalyptic number.

It is an amenable number.

68243316 is an abundant number, since it is smaller than the sum of its proper divisors (92482284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68243316 is a wasteful number, since it uses less digits than its factorization.

68243316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53263 (or 53261 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 68243316 is about 8260.9512769414. The cubic root of 68243316 is about 408.6517600976.

The spelling of 68243316 in words is "sixty-eight million, two hundred forty-three thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 12 107 214 321 428 642 1284 53149 106298 159447 212596 318894 637788 5686943 11373886 17060829 22747772 34121658 68243316