1221000000
1,221,000,000 is an even composite number composed of five prime numbers multiplied together.
1221000000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred ninety-two divisors.
Prime factorization of 1221000000:
26 × 3 × 56 × 11 × 37
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 5 × 5 × 5 × 5 × 11 × 37)See below for interesting mathematical facts about the number 1221000000 from the Numbermatics database.
Names of 1221000000
- Cardinal: 1221000000 can be written as One billion, two hundred twenty-one million.
Scientific notation
- Scientific notation: 1.221 × 109
Factors of 1221000000
Divisors of 1221000000
- Number of divisors d(n): 392
-
Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 25 30 32 33 37 40 44 48 50 55 60 64 66 74 75 80 88 96 100 110 111 120 125 132 148 150 160 165 176 185 192 200 220 222 240 250 264 275 296 300 320 330 352 370 375 400 407 440 444 480 500 528 550 555 592 600 625 660 704 740 750 800 814 825 880 888 925 960 1000 1056 1100 1110 1184 1200 1221 1250 1320 1375 1480 1500 1600 1628 1650 1760 1776 1850 1875 2000 2035 2112 2200 2220 2368 2400 2442 2500 2640 2750 2775 2960 3000 3125 3256 3300 3520 3552 3700 3750 4000 4070 4125 4400 4440 4625 4800 4884 5000 5280 5500 5550 5920 6000 6105 6250 6512 6600 6875 7104 7400 7500 8000 8140 8250 8800 8880 9250 9375 9768 10000 10175 10560 11000 11100 11840 12000 12210 12500 13024 13200 13750 13875 14800 15000 15625 16280 16500 17600 17760 18500 18750 19536 20000 20350 20625 22000 22200 23125 24000 24420 25000 26048 26400 27500 27750 29600 30000 30525 31250 32560 33000 34375 35520 37000 37500 39072 40000 40700 41250 44000 44400 46250 46875 48840 50000 50875 52800 55000 55500 59200 60000 61050 62500 65120 66000 68750 69375 74000 75000 78144 81400 82500 88000 88800 92500 93750 97680 100000 101750 103125 110000 111000 115625 120000 122100 125000 130240 132000 137500 138750 148000 150000 152625 162800 165000 171875 177600 185000 187500 195360 200000 203500 206250 220000 222000 231250 244200 250000 254375 264000 275000 277500 296000 300000 305250 325600 330000 343750 346875 370000 375000 390720 407000 412500 440000 444000 462500 488400 500000 508750 515625 550000 555000 578125 600000 610500 651200 660000 687500 693750 740000 750000 763125 814000 825000 888000 925000 976800 1000000 1017500 1031250 1100000 1110000 1156250 1221000 1271875 1320000 1375000 1387500 1480000 1500000 1526250 1628000 1650000 1734375 1850000 1953600 2035000 2062500 2200000 2220000 2312500 2442000 2543750 2750000 2775000 3000000 3052500 3256000 3300000 3468750 3700000 3815625 4070000 4125000 4440000 4625000 4884000 5087500 5500000 5550000 6105000 6359375 6600000 6937500 7400000 7631250 8140000 8250000 9250000 9768000 10175000 11000000 11100000 12210000 12718750 13875000 15262500 16280000 16500000 18500000 19078125 20350000 22200000 24420000 25437500 27750000 30525000 33000000 37000000 38156250 40700000 48840000 50875000 55500000 61050000 76312500 81400000 101750000 111000000 122100000 152625000 203500000 244200000 305250000 407000000 610500000 1221000000
- Sum of all divisors σ(n): 4524317088
- Sum of proper divisors (its aliquot sum) s(n): 3303317088
- 1221000000 is an abundant number, because the sum of its proper divisors (3303317088) is greater than itself. Its abundance is 2082317088
Bases of 1221000000
- Binary: 10010001100011011111011010000002
- Hexadecimal: 0x48C6FB40
- Base-36: K6Y9MO
Squares and roots of 1221000000
- 1221000000 squared (12210000002) is 1490841000000000000
- 1221000000 cubed (12210000003) is 1820316861000000000000000000
-
The
square root of 1221000000 is 34942.8104193123 -
The
cube root of 1221000000 is 1068.8215984317
Scales and comparisons
How big is 1221000000?- 1,221,000,000 seconds is equal to 38 years, 42 weeks, 5 days, 22 hours, 40 minutes.
-
To count from 1 to 1,221,000,000 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 1221000000 cubic inches would be around 89.1 feet tall.
Recreational maths with 1221000000
- 1221000000 backwards is 0000001221
- 1221000000 is a
Harshad number . - The number of decimal digits it has is: 10
- The sum of 1221000000's digits is 6
- More coming soon!
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 1221000000 - Facts about the integer". Numbermatics.com. 2024. Web. 16 May 2024.
APA style:
Numbermatics. (2024). Number 1221000000 - Facts about the integer. Retrieved 16 May 2024, from https://numbermatics.com/n/1221000000/
Chicago style:
Numbermatics. 2024. "Number 1221000000 - Facts about the integer". https://numbermatics.com/n/1221000000/
The information we have on file for 1221000000 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!
Keywords: Divisors of 1221000000, math, Factors of 1221000000, curriculum, school, college, exams, university, Prime factorization of 1221000000, STEM, science, technology, engineering, physics, economics, calculator, one billion, two hundred twenty-one million.