'Number' in the Bible

And I looked, and I heard the voice of many angels around the throne and of the living creatures and of the elders, and their number was ten thousand times ten thousand and thousands times thousands,

And to each one of them a white robe was given, and it was said to them that they should rest yet a short time, until [the number of] their fellow slaves and their brothers who were about to be killed as they [had been] were completed also.

And I heard the number of the ones who were sealed, one hundred forty-four thousand sealed from every tribe of the sons of Israel:

After these [things] I looked, and behold, a great crowd that no one was able to number, from every nation and tribe and people and language, standing before the throne and before the Lamb, dressed [in] white robes and [with] palm branches in their hands.

And the number of the troops of the cavalry [was] {two hundred million}; I heard the number of them.

and that no one was able to buy or to sell except the one who had the mark--the name of the beast or the number of his name.

Here is wisdom: the one who has understanding, let him calculate the number of the beast, for it is man's number, and his number [is] six hundred sixty-six.

And I saw [something] like a sea of glass mixed with fire, and those who had conquered the beast and his image and the number of his name were standing by the glassy sea, holding harps from God.

and he will go out to deceive the nations [that are] at the four corners of the earth, Gog and Magog, to assemble them for battle, {whose number} [is] like the sand of the sea.