It could be 507, to the nearest 20.
517.00
Rounding it off, it is 92%.
507 rounded to the nearest tens is 510
507
500
700
510
507
The factors of 507 are: 1, 3, 13, 39, 169, and 507. The prime factors of 507 are: 3 and 13.
Including the 0 in 507, there are ten zeros in 507 billion (507,000,000,000)
11% of 507 is 55.77