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A decillion is equal to 1 followed by 33 zeros. This is because the prefix "deci-" represents 10^33 in the short scale system. Therefore, there are 33 zeros in a decillion.
A septillion has 24 zeros. A decillion has 33 zeros. A septendecillion has 54 zeros. I can't find your term in any of my reference works, so I guess it can have as many (or as few) zeros as you want.
I am often asked the question: How many 0s are in ______. Here is a quick list of numbers and how many 0s they have: Ten: 10 (1 zero) Hundred: 100 (2 zeros) Thousand: 1000 (3 zeros) Ten thousand 10,000 (4 zeros) Hundred thousand 100,000 (5 zeros) Million 1,000,000 (6 zeros) Billion 1,000,000,000 (9 zeros) Trillion 1,000,000,000,000 (12 zeros) Quadrillion 1,000,000,000,000,000 (15 zeros) Quintillion 1,000,000,000,000,000,000 (18 zeros) Sextillion 1,000,000,000,000,000,000,000 (21 zeros) Septillion 1,000,000,000,000,000,000,000,000 (24 zeros) Octillion 1,000,000,000,000,000,000,000,000,000 (27 zeros) Nonillion 1,000,000,000,000,000,000,000,000,000,000 (30 zeros) Decillion 1,000,000,000,000,000,000,000,000,000,000,000 (33 zeros)
35 zeros is zero. if you have a digit "y" followed by 35 zeroes it can be written as y x10^35 in scientific notation A 1 followed by 35 zeroes is "one hundred decillion"
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33: 1,000,000,000,000,000,000,000,000,000,000,000