1221328920
1,221,328,920 is an even composite number composed of five prime numbers multiplied together.
1221328920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 1221328920:
23 × 3 × 5 × 72 × 207709
(2 × 2 × 2 × 3 × 5 × 7 × 7 × 207709)See below for interesting mathematical facts about the number 1221328920 from the Numbermatics database.
Names of 1221328920
- Cardinal: 1221328920 can be written as One billion, two hundred twenty-one million, three hundred twenty-eight thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.22132892 × 109
Factors of 1221328920
Divisors of 1221328920
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 49 56 60 70 84 98 105 120 140 147 168 196 210 245 280 294 392 420 490 588 735 840 980 1176 1470 1960 2940 5880 207709 415418 623127 830836 1038545 1246254 1453963 1661672 2077090 2492508 2907926 3115635 4154180 4361889 4985016 5815852 6231270 7269815 8308360 8723778 10177741 11631704 12462540 14539630 17447556 20355482 21809445 24925080 29079260 30533223 34895112 40710964 43618890 50888705 58158520 61066446 81421928 87237780 101777410 122132892 152666115 174475560 203554820 244265784 305332230 407109640 610664460 1221328920
- Sum of all divisors σ(n): 4262209200
- Sum of proper divisors (its aliquot sum) s(n): 3040880280
- 1221328920 is an abundant number, because the sum of its proper divisors (3040880280) is greater than itself. Its abundance is 1819551360
Bases of 1221328920
- Binary: 10010001100110000000000000110002
- Hexadecimal: 0x48CC0018
- Base-36: K75BFC
Squares and roots of 1221328920
- 1221328920 squared (12213289202) is 1491644330828366400
- 1221328920 cubed (12213289203) is 1821788359594731440676288000
-
The
square root of 1221328920 is 34947.5166499711 -
The
cube root of 1221328920 is 1068.9175649171
Scales and comparisons
How big is 1221328920?- 1,221,328,920 seconds is equal to 38 years, 43 weeks, 2 days, 18 hours, 2 minutes.
-
To count from 1 to 1,221,328,920 would take you about seventy-seven years!
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 1221328920 cubic inches would be around 89.1 feet tall.
Recreational maths with 1221328920
- 1221328920 backwards is 0298231221
- 1221328920 is a
Harshad number . - The number of decimal digits it has is: 10
- The sum of 1221328920's digits is 30
- More coming soon!
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The information we have on file for 1221328920 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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