990085856640

Names of 990085856640

• Cardinal: 990085856640 can be written as Nine hundred ninety billion, eighty-five million, eight hundred fifty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 9.9008585664 × 10¹¹

Factors of 990085856640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 12563

Divisors of 990085856640

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 40 43 48 60 62 64 80 86 93 96 120 124 128 129 155 160 172 186 192 215 240 248 258 310 320 344 372 384 430 465 480 496 516 620 640 645 688 744 860 930 960 961 992 1032 1240 1290 1333 1376 1488 1720 1860 1920 1922 1984 2064 2480 2580 2666 2752 2883 2976 3440 3720 3844 3968 3999 4128 4805 4960 5160 5332 5504 5766 5952 6665 6880 7440 7688 7998 8256 9610 9920 10320 10664 11532 11904 12479 13330 13760 14415 14880 15376 15996 16512 19220 19840 19995 20640 21328 23064 24958 26660 27520 28830 29760 30752 31992 37437 38440 39990 41280 41323 42656 46128 49916 53320 57660 59520 61504 62395 63984 74874 76880 79980 82560 82646 85312 92256 99832 106640 115320 123008 123969 124790 127968 149748 153760 159960 165292 170624 184512 187185 199664 206615 213280 230640 247938 249580 255936 299496 307520 319920 330584 369024 374370 386849 399328 413230 426560 461280 495876 499160 511872 536597 598992 615040 619845 639840 661168 748740 773698 798656 826460 853120 922560 991752 998320 1073194 1160547 1197984 1239690 1279680 1322336 1497480 1547396 1597312 1609791 1652920 1845120 1934245 1983504 1996640 2146388 2321094 2395968 2479380 2559360 2644672 2682985 2994960 3094792 3219582 3305840 3868490 3967008 3993280 4292776 4642188 4791936 4958760 5289344 5365970 5802735 5989920 6189584 6439164 6611680 7736980 7934016 7986560 8048955 8585552 9284376 9917520 10731940 11605470 11979840 11992319 12379168 12878328 13223360 15473960 15868032 16097910 16634507 17171104 18568752 19835040 21463880 23210940 23959680 23984638 24758336 25756656 26446720 30947920 32195820 33269014 34342208 35976957 37137504 39670080 42927760 46421880 47969276 49516672 49903521 51513312 59961595 61895840 64391640 66538028 68684416 71953914 74275008 79340160 83172535 85855520 92843760 95938552 99807042 103026624 119923190 123791680 128783280 133076056 143907828 148550016 166345070 171711040 179884785 185687520 191877104 199614084 206053248 239846380 247583360 249517605 257566560 266152112 287815656 332690140 343422080 359769570 371375040 383754208 399228168 479692760 499035210 515133120 515669717 532304224 575631312 665380280 719539140 742750080 767508416 798456336 959385520 998070420 1030266240 1031339434 1064608448 1151262624 1330760560 1439078280 1535016832 1547009151 1596912672 1918771040 1996140840 2062678868 2129216896 2302525248 2578348585 2661521120 2878156560 3094018302 3193825344 3837542080 3992281680 4125357736 4605050496 5156697170 5323042240 5756313120 6188036604 6387650688 7675084160 7735045755 7984563360 8250715472 10313394340 10646084480 11512626240 12376073208 15470091510 15969126720 16501430944 20626788680 23025252480 24752146416 30940183020 31938253440 33002861888 41253577360 49504292832 61880366040 66005723776 82507154720 99008585664 123760732080 165014309440 198017171328 247521464160 330028618880 495042928320 990085856640
• Sum of all divisors σ(n): 3337090099200
• Sum of proper divisors (its aliquot sum) s(n): 2347004242560
• 990085856640 is an abundant number, because the sum of its proper divisors (2347004242560) is greater than itself. Its abundance is 1356918385920

Bases of 990085856640

• Binary: 1110011010000101101101110011110110000000₂
• Hexadecimal: 0xE685B73D80
• Base-36: CMU7K0AO

Squares and roots of 990085856640

• 990085856640 squared (990085856640²) is 980270003518562632089600
• 990085856640 cubed (990085856640³) is 970551466172171897733924769234944000
• The square root of 990085856640 is 995030.5807561897
• The cube root of 990085856640 is 9966.8430385649

Scales and comparisons

• 990,085,856,640 seconds is equal to 31,481 years, 34 weeks, 5 days, 1 hour, 4 minutes.
• To count from 1 to 990,085,856,640 would take you about sixty-two thousand, nine hundred sixty-three 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 990085856640 cubic inches would be around 830.6 feet tall.

Recreational maths with 990085856640

• 990085856640 backwards is 046658580099
• 990085856640 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 990085856640's digits is 60
• More coming soon!