9985321720

Names of 9985321720

• Cardinal: 9985321720 can be written as Nine billion, nine hundred eighty-five million, three hundred twenty-one thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 9.98532172 × 10⁹

Factors of 9985321720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 192

Divisors of 9985321720

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 11 20 22 37 40 44 55 74 88 110 121 137 148 185 220 242 274 296 370 407 440 484 548 605 685 740 814 968 1096 1210 1331 1369 1370 1480 1507 1628 2035 2420 2662 2738 2740 3014 3256 4070 4477 4840 5069 5324 5476 5480 6028 6655 6845 7535 8140 8954 10138 10648 10952 12056 13310 13690 15059 15070 16280 16577 17908 20276 22385 25345 26620 27380 30118 30140 33154 35816 40552 44770 49247 50690 53240 54760 55759 60236 60280 66308 75295 82885 89540 98494 101380 111518 120472 132616 150590 165649 165770 179080 182347 187553 196988 202760 223036 246235 278795 301180 331298 331540 364694 375106 393976 446072 492470 557590 602360 613349 662596 663080 729388 750212 828245 911735 937765 984940 1115180 1226698 1325192 1458776 1500424 1656490 1822139 1823470 1875530 1969880 2063083 2230360 2453396 3066745 3312980 3644278 3646940 3751060 4126166 4906792 6133490 6625960 6746839 7288556 7293880 7502120 8252332 9110695 10315415 12266980 13493678 14577112 16504664 18221390 20630830 22693913 24533960 26987356 33734195 36442780 41261660 45387826 53974712 67468390 72885560 82523320 90775652 113469565 134936780 181551304 226939130 249633043 269873560 453878260 499266086 907756520 998532172 1248165215 1997064344 2496330430 4992660860 9985321720
• Sum of all divisors σ(n): 25583312160
• Sum of proper divisors (its aliquot sum) s(n): 15597990440
• 9985321720 is an abundant number, because the sum of its proper divisors (15597990440) is greater than itself. Its abundance is 5612668720

Bases of 9985321720

• Binary: 1001010011001010111110101011111000₂
• Hexadecimal: 0x2532BEAF8
• Base-36: 4L503JS

Squares and roots of 9985321720

• 9985321720 squared (9985321720²) is 99706649851903758400
• 9985321720 cubed (9985321720³) is 995602976394649382101152448000
• The square root of 9985321720 is 99926.5816487285
• The cube root of 9985321720 is 2153.3800606713

Scales and comparisons

• 9,985,321,720 seconds is equal to 317 years, 26 weeks, 20 hours, 28 minutes, 40 seconds.
• To count from 1 to 9,985,321,720 would take you about six hundred thirty-five 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 9985321720 cubic inches would be around 179.4 feet tall.

Recreational maths with 9985321720

• 9985321720 backwards is 0271235899
• The number of decimal digits it has is: 10
• The sum of 9985321720's digits is 46
• More coming soon!