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68725700 = 22521813797
BaseRepresentation
bin1000001100010…
…10101111000100
311210022121221022
410012022233010
5120043210300
610453010312
71463105321
oct406125704
9153277838
1068725700
11358806aa
121b023998
13113137c4
1491adb48
156078285
hex418abc4

68725700 has 36 divisors (see below), whose sum is σ = 149998212. Its totient is φ = 27331200.

The previous prime is 68725693. The next prime is 68725721. The reversal of 68725700 is 752786.

It can be written as a sum of positive squares in 6 ways, for example, as 36554116 + 32171584 = 6046^2 + 5672^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16202 + ... + 19998.

It is an arithmetic number, because the mean of its divisors is an integer number (4166617).

Almost surely, 268725700 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 68725700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74999106).

68725700 is an abundant number, since it is smaller than the sum of its proper divisors (81272512).

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

68725700 is a wasteful number, since it uses less digits than its factorization.

68725700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992 (or 3985 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 68725700 is about 8290.0965012477. The cubic root of 68725700 is about 409.6123641414.

The spelling of 68725700 in words is "sixty-eight million, seven hundred twenty-five thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 181 362 724 905 1810 3620 3797 4525 7594 9050 15188 18100 18985 37970 75940 94925 189850 379700 687257 1374514 2749028 3436285 6872570 13745140 17181425 34362850 68725700