30921072
30,921,072 is an even composite number composed of five prime numbers multiplied together.
30921072 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 30921072:
24 × 3 × 7 × 13 × 7079
(2 × 2 × 2 × 2 × 3 × 7 × 13 × 7079)See below for interesting mathematical facts about the number 30921072 from the Numbermatics database.
Names of 30921072
- Cardinal: 30921072 can be written as Thirty million, nine hundred twenty-one thousand and seventy-two.
Scientific notation
- Scientific notation: 3.0921072 × 107
Factors of 30921072
Divisors of 30921072
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 52 56 78 84 91 104 112 156 168 182 208 273 312 336 364 546 624 728 1092 1456 2184 4368 7079 14158 21237 28316 42474 49553 56632 84948 92027 99106 113264 148659 169896 184054 198212 276081 297318 339792 368108 396424 552162 594636 644189 736216 792848 1104324 1189272 1288378 1472432 1932567 2208648 2378544 2576756 3865134 4417296 5153512 7730268 10307024 15460536 30921072
- Sum of all divisors σ(n): 98327040
- Sum of proper divisors (its aliquot sum) s(n): 67405968
- 30921072 is an abundant number, because the sum of its proper divisors (67405968) is greater than itself. Its abundance is 36484896
Bases of 30921072
- Binary: 11101011111010001011100002
- Hexadecimal: 0x1D7D170
- Base-36: IEQUO
Squares and roots of 30921072
- 30921072 squared (309210722) is 956112693629184
- 30921072 cubed (309210723) is 29564029439821939765248
-
The
square root of 30921072 is 5560.6719018479 -
The
cube root of 30921072 is 313.8712333935
Scales and comparisons
How big is 30921072?- 30,921,072 seconds is equal to 51 weeks, 21 hours, 11 minutes, 12 seconds.
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To count from 1 to 30,921,072 would take you about twenty-four weeks!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 30921072 cubic inches would be around 26.2 feet tall.
Recreational maths with 30921072
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The information we have on file for 30921072 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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