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68355296 = 25472967
BaseRepresentation
bin1000001001100…
…00010011100000
311202121210211122
410010300103200
5114444332141
610441031412
71460003402
oct404602340
9152553748
1068355296
1135648389
121aa85568
1311214029
149114b72
15600364b
hex41304e0

68355296 has 36 divisors (see below), whose sum is σ = 137640888. Its totient is φ = 33415872.

The previous prime is 68355281. The next prime is 68355299. The reversal of 68355296 is 69255386.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68355299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70205 + ... + 71171.

It is an arithmetic number, because the mean of its divisors is an integer number (3823358).

Almost surely, 268355296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68355296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68820444).

68355296 is an abundant number, since it is smaller than the sum of its proper divisors (69285592).

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

68355296 is an equidigital number, since it uses as much as digits as its factorization.

68355296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1016 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 68355296 is about 8267.7261686633. The cubic root of 68355296 is about 408.8751559310.

The spelling of 68355296 in words is "sixty-eight million, three hundred fifty-five thousand, two hundred ninety-six".

Divisors: 1 2 4 8 16 32 47 94 188 376 752 967 1504 1934 2209 3868 4418 7736 8836 15472 17672 30944 35344 45449 70688 90898 181796 363592 727184 1454368 2136103 4272206 8544412 17088824 34177648 68355296