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68287250 = 253273149
BaseRepresentation
bin1000001000111…
…11101100010010
311202111100111102
410010133230102
5114440143000
610435344402
71456301123
oct404375422
9152440442
1068287250
1135601249
121aa52102
13111bc075
1490d804a
155edd3d5
hex411fb12

68287250 has 16 divisors (see below), whose sum is σ = 127834200. Its totient is φ = 27314800.

The previous prime is 68287231. The next prime is 68287277. The reversal of 68287250 is 5278286.

It can be written as a sum of positive squares in 4 ways, for example, as 17749369 + 50537881 = 4213^2 + 7109^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136325 + ... + 136824.

Almost surely, 268287250 is an apocalyptic number.

68287250 is a deficient number, since it is larger than the sum of its proper divisors (59546950).

68287250 is a wasteful number, since it uses less digits than its factorization.

68287250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273166 (or 273156 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 68287250 is about 8263.6099859565. The cubic root of 68287250 is about 408.7394358637.

The spelling of 68287250 in words is "sixty-eight million, two hundred eighty-seven thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 273149 546298 1365745 2731490 6828725 13657450 34143625 68287250