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68426900 = 2252684269
BaseRepresentation
bin1000001010000…
…01110010010100
311202202110001122
410011001302110
5120004130100
610442343112
71460422223
oct405016224
9152673048
1068426900
1135697163
121aabaa98
131123a7b9
149132cba
156019985
hex4141c94

68426900 has 18 divisors (see below), whose sum is σ = 148486590. Its totient is φ = 27370720.

The previous prime is 68426879. The next prime is 68426903. The reversal of 68426900 is 962486.

68426900 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3334276 + 65092624 = 1826^2 + 8068^2 .

It is a super-2 number, since 2×684269002 = 9364481287220000, which contains 22 as substring.

68426900 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68426903) 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, 342035 + ... + 342234.

It is an arithmetic number, because the mean of its divisors is an integer number (8249255).

Almost surely, 268426900 is an apocalyptic number.

It is an amenable number.

68426900 is an abundant number, since it is smaller than the sum of its proper divisors (80059690).

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

68426900 is a wasteful number, since it uses less digits than its factorization.

68426900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684283 (or 684276 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 68426900 is about 8272.0553673195. The cubic root of 68426900 is about 409.0178753274.

The spelling of 68426900 in words is "sixty-eight million, four hundred twenty-six thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 684269 1368538 2737076 3421345 6842690 13685380 17106725 34213450 68426900