11991039840

Names of 11991039840

• Cardinal: 11991039840 can be written as Eleven billion, nine hundred ninety-one million, thirty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.199103984 × 10¹⁰

Factors of 11991039840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 33755

Divisors of 11991039840

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 19 20 24 26 30 32 36 38 39 40 45 48 52 57 60 65 72 76 78 80 90 95 96 104 114 117 120 130 144 152 156 160 171 180 190 195 208 228 234 240 247 260 285 288 304 312 342 360 380 390 416 456 468 480 494 520 570 585 608 624 684 720 741 760 780 855 912 936 988 1040 1140 1170 1235 1248 1368 1440 1482 1520 1560 1710 1824 1872 1976 2080 2223 2280 2340 2470 2736 2964 3040 3120 3420 3705 3744 3952 4446 4560 4680 4940 5472 5928 6240 6840 7410 7904 8892 9120 9360 9880 11115 11856 13680 14820 17784 18720 19760 22230 23712 27360 29640 33713 35568 39520 44460 59280 67426 71136 88920 101139 118560 134852 168565 177840 202278 269704 303417 337130 355680 404556 438269 505695 539408 606834 640547 674260 809112 876538 1011390 1078816 1213668 1281094 1314807 1348520 1517085 1618224 1753076 1921641 2022780 2191345 2427336 2562188 2629614 2697040 3034170 3202735 3236448 3506152 3843282 3944421 4045560 4382690 4854672 5124376 5259228 5394080 5764923 6068340 6405470 6574035 7012304 7686564 7888842 8091120 8327111 8765380 9608205 9709344 10248752 10518456 11529846 12136680 12810940 13148070 14024608 15373128 15777684 16182240 16654222 17530760 19216410 19722105 20497504 21036912 23059692 24273360 24981333 25621880 26296140 28824615 30746256 31555368 33308444 35061520 38432820 39444210 41635555 42073824 46119384 48546720 49962666 51243760 52592280 57649230 61492512 63110736 66616888 70123040 74943999 76865640 78888420 83271110 92238768 99925332 102487520 105184560 115298460 124906665 126221472 133233776 149887998 153731280 157776840 166542220 184477536 199850664 210369120 230596920 249813330 266467552 299775996 307462560 315553680 333084440 374719995 399701328 461193840 499626660 599551992 631107360 666168880 749439990 799402656 922387680 999253320 1199103984 1332337760 1498879980 1998506640 2398207968 2997759960 3997013280 5995519920 11991039840
• Sum of all divisors σ(n): 46387766880
• Sum of proper divisors (its aliquot sum) s(n): 34396727040
• 11991039840 is an abundant number, because the sum of its proper divisors (34396727040) is greater than itself. Its abundance is 22405687200

Bases of 11991039840

• Binary: 1011001010101110001011111101100000₂
• Hexadecimal: 0x2CAB8BF60
• Base-36: 5IB5LK0

Squares and roots of 11991039840

• 11991039840 squared (11991039840²) is 143785036444467225600
• 11991039840 cubed (11991039840³) is 1724132100401458449743867904000
• The square root of 11991039840 is 109503.6065159499
• The cube root of 11991039840 is 2288.8585197355

Scales and comparisons

• 11,991,039,840 seconds is equal to 381 years, 14 weeks, 3 days, 4 hours, 24 minutes.
• To count from 1 to 11,991,039,840 would take you about seven hundred sixty-two 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 11991039840 cubic inches would be around 190.7 feet tall.

Recreational maths with 11991039840

• 11991039840 backwards is 04893019911
• 11991039840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 11991039840's digits is 45
• More coming soon!