A rich number or disjunctive number is a real number whose expansion with respect to some base b is a disjunctive sequence over the alphabet {0,…,b−1}. A number that is disjunctive to every base is called absolutely disjunctive or is said to be a lexicon. Every string in every alphabet occurs within a lexicon.

program by Ralph Loader that came in first place for the Bignum Bakeoff contest, whose objective was to write a C program (in 512 characters or less) that generates the largest possible output on a theoretical machine with infinite memory. It is among the largest computable numbers ever devised.

We call a number normal if fk(w,n)→110 as n→∞ for k=1,2,3,4,5,6,7,8,9. Prove that 0…. is normal. So the number of times 1 appear in the first 9 digits after the decimal point is 1, then in the next 90 digits is 19=10+1+8∗1, then the number of times 1 appears in the next 900 digits is 8…

Common percentage to decimal numbers to fractions conversions

Zero’s status as a whole number and the fact that it is not a negative number makes it considered a natural number by some mathematicians. So, to answer the question is zero a natural number – yes it is on a number line and when identifying numbers in a set; but also no, because it’s not used to count objects

Today, zero — both as a symbol (or numeral) and a concept meaning the absence of any quantity — allows us to perform calculus, do complicated equations, and to have invented computers

So what is it – odd, even or neither? For mathematicians the answer is easy: zero is an even number

The problem is that you can’t borrow “1” from “0”. When this happens, you need to look at the next column to the left (hundreds). (3) Since the value in the hundreds column is greater than “0”, you can borrow. (9) There is no subtraction in the hundreds column because the value is now “0.”

negative zero

The numerology number 4 is a conscientious number with a focus on long-term security. The numerology number 4 is a number of focus — a focus on building a secure foundation for the future. A number’s meaning can be thought of as the number’s basic tone or vibration.

The opposite reciprocal of the number 4 would be -1/4.

-27

opposite of 23 = -(23) = -23 ot

So, when we are asked to find the absolute value of a negative number, the answer will be positive. -23 is 23 units apart from 0, meaning that the answer to this question is simply 23. If you are struggling it helps to use a number line to find your answer

So, for example, the opposite of any integer 37 is −37. And the opposite of −81 is −−81 = 81.

The opposite is the additive inverse. 7+(−7)=0 where 0 is the identity for addition. If you picture the real numbers on a line with 0 in the centre, the opposite of a number is on the opposite side of 0 at the same distance

The reciprocal of -5/7 is -7/5