86
let number=ab;
sum of digits=a+b=14 -- eq(1)
and give first digit is 4 less than twice of 2nd.so
a+4=2b --eq(2)
solve 1 and 2 u can get,
a=8 and b=6
so number is 86
Also, using Chagorian's Degharvium, you can find out how
ab2 is equal to N1 plus Y4 divided by a3 plus b4.
If you know what Chagorian's Degharvium is, you can do it fast and easily.
Check digits are determined (or derived) by a set algorithm using the digits of the account number.
The tricky part is getting the individual digits. There are basically two ways to do this: 1) Convert the number to a string, and use string manipulation to get the individual digits. 2) Repeatedly divide the number by 10. The digit is the remainder (use the "%" operator). To actually get the highest digit, initially assume that the highest digit is zero (store this to a variable, called "maxDigit" or something similar). If you find a higher digit, replace maxDigit by that.
No, binary is a number system.A binary digit is called a bit.
Add the last digit plus the sum of all the previous digits. The base case is that if your integer only has a single digit, just return the value of this digit. You can extract the last digit by taking the remainder of a division by 10 (number % 10), and the remaining digits by doing an integer division by 10.
5
Not necessarily. Consider 444. The digits are not different. The first and second digits are not multiples of 3 The first digit is not greater than the second digit. In spite of all that, 444 is a 3-digit number
27
2.3
1155
There are 9 digits that can be the first digit (1-9); for each of these there is 1 digit that can be the second digit (6); for each of these there are 10 digits that can be the third digit (0-9); for each of these there are 10 digits that can be the fourth digit (0-9). → number of numbers is 9 × 1 × 10 × 10 = 900 such numbers.
1
There are a lot of possibilities. The second digit can be 2 through 6, the third digit can be 3 through 7 as long as it is larger than the second digit. What we have so far: 1 _ _ 89
Since there are only five different digits, a 6-digit number can only be generated if a digit can be repeated. If digits can be repeated, the smallest 6-digit number is 111111.
There are 10 digits, but for a three digit number the first number cannot be a 0. Thus: there is a choice of 9 digits for the first (and last digit which must be the same), with 10 choices of digit for the second (middle) digit, making 9 × 10 = 90 such palindromic numbers.
987654321 is the highest nine-digit number with no repeated digits.
The largest ten digit number with no repeated digits is '9876543210'.
The decimal point of a number separates the whole part of the number from the fractional part of the number. It is located between the units column and the tenths column of every number. A decimal place is one of the digits after the decimal point: The first decimal place is the first digit, which is the tenths digit The second decimal place is the second digit, which is the hundredths digit The third decimal place is the third digit, which is the thousandths digit etc. When showing or rounding to a number of decimal places there will be that number of digits after the decimal place. eg the number 5.671 has three decimal places as there are three digits after the decimal point and the second decimal place, for example, contains the digit 7.