990891712253520

Names of 990891712253520

• Cardinal: 990891712253520 can be written as Nine hundred ninety trillion, eight hundred ninety-one billion, seven hundred twelve million, two hundred fifty-three thousand, five hundred twenty.

Scientific notation

• Scientific notation: 9.9089171225352 × 10¹⁴

Factors of 990891712253520

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 616318234

Divisors of 990891712253520

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 20 21 22 24 28 29 30 33 35 36 40 42 44 45 48 55 56 58 60 63 66 70 72 77 80 84 87 88 90 99 105 110 112 116 120 126 132 140 144 145 154 165 168 174 176 180 198 203 210 220 231 232 240 252 261 264 280 290 308 315 319 330 336 348 360 385 396 406 420 435 440 462 464 495 504 522 528 560 580 609 616 630 638 660 693 696 720 770 792 812 840 870 880 924 957 990 1008 1015 1044 1155 1160 1218 1232 1260 1276 1305 1320 1386 1392 1540 1584 1595 1624 1680 1740 1827 1848 1914 1980 2030 2088 2233 2310 2320 2436 2520 2552 2610 2640 2772 2871 3045 3080 3190 3248 3465 3480 3654 3696 3828 3960 4060 4176 4466 4620 4785 4872 5040 5104 5220 5544 5742 6090 6160 6380 6699 6930 6960 7308 7656 7920 8120 8932 9135 9240 9570 9744 10440 11088 11165 11484 12180 12760 13398 13860 14355 14616 15312 16240 17864 18270 18480 19140 20097 20880 22330 22968 24360 25520 26796 27720 28710 29232 33495 35728 36540 38280 40194 44660 45936 48720 53592 55440 57420 66990 73080 76560 80388 89320 100485 107184 114840 133980 146160 160776 178640 200970 229680 267960 321552 401940 535920 803880 1607760 616318177 1232636354 1848954531 2465272708 3081590885 3697909062 4314227239 4930545416 5546863593 6163181770 6779499947 7395818124 8628454478 9244772655 9861090832 11093727186 12326363540 12942681717 13558999894 14791636248 17256908956 17873227133 18489545310 20338499841 21571136195 22187454372 24652727080 25885363434 27117999788 27734317965 29583272496 33897499735 34513817912 35746454266 36979090620 38828045151 40676999682 43142272390 44374908744 47456499629 49305454160 51770726868 53619681399 54235999576 55468635930 61015499523 64713408585 67794999470 69027635824 71492908532 73958181240 77656090302 81353999364 86284544780 88749817488 89366135665 94912999258 101692499205 103541453736 107239362798 108471999152 110937271860 122030999046 125112589931 129426817170 135589998940 142369498887 142985817064 147916362480 155312180604 160859044197 162707998728 172569089560 178732271330 189825998516 194140225755 196605498463 203384998410 207082907472 214478725596 221874543720 237282498145 244061998092 250225179862 258853634340 268098406995 271179997880 284738997774 285971634128 305077497615 310624361208 321718088394 325415997456 345138179120 357464542660 375337769793 379651997032 388280451510 393210996926 406769996820 427108496661 428957451192 443749087440 474564996290 488123996184 500450359724 517707268680 536196813990 542359995760 569477995548 589816495389 610154995230 621248722416 625562949655 643436176788 711847494435 714929085320 750675539586 759303994064 776560903020 786421993852 804295220985 813539993640 854216993322 857914902384 949129992580 976247992368 983027492315 1000900719448 1035414537360 1072393627980 1126013309379 1138955991096 1179632990778 1220309990460 1251125899310 1286872353576 1376238489241 1423694988870 1429858170640 1501351079172 1553121806040 1572843987704 1608590441970 1627079987280 1708433986644 1769449486167 1876688848965 1898259985160 1966054984630 2001801438896 2135542483305 2144787255960 2252026618758 2277911982192 2359265981556 2440619980920 2502251798620 2573744707152 2752476978482 2847389977740 2949082476945 3002702158344 3106243612080 3145687975408 3217180883940 3416867973288 3538898972334 3753377697930 3796519970320 3932109969260 4128715467723 4271084966610 4289574511920 4504053237516 4718531963112 4881239961840 5004503597240 5504953956964 5630066546895 5694779955480 5898164953890 6005404316688 6434361767880 6833735946576 6881192446205 7077797944668 7506755395860 7864219938520 8257430935446 8542169933220 8847247430835 9008106475032 9437063926224 10009007194480 11009907913928 11260133093790 11389559910960 11796329907780 12386146403169 12868723535760 13762384892410 14155595889336 15013510791720 15728439877040 16514861870892 17084339866440 17694494861670 18016212950064 20643577338615 22019815827856 22520266187580 23592659815560 24772292806338 27524769784820 28311191778672 30027021583440 33029723741784 34168679732880 35388989723340 41287154677230 45040532375160 47185319631120 49544585612676 55049539569640 61930732015845 66059447483568 70777979446680 82574309354460 90081064750320 99089171225352 110099079139280 123861464031690 141555958893360 165148618708920 198178342450704 247722928063380 330297237417840 495445856126760 990891712253520
• Sum of all divisors σ(n): 4291941180683520
• Sum of proper divisors (its aliquot sum) s(n): 3301049468430000
• 990891712253520 is an abundant number, because the sum of its proper divisors (3301049468430000) is greater than itself. Its abundance is 2310157756176480

Bases of 990891712253520

• Binary: 11100001010011010111110100100001010000111001010000₂
• Hexadecimal: 0x38535F4850E50
• Base-36: 9R8PD9ER80

Squares and roots of 990891712253520

• 990891712253520 squared (990891712253520²) is 981866385412712677716752390400
• 990891712253520 cubed (990891712253520³) is 972923263845777457816687945258299430814208000
• The square root of 990891712253520 is 31478432.4935902741
• The cube root of 990891712253520 is 99695.4639277025

Scales and comparisons

• 990,891,712,253,520 seconds is equal to 31,507,291 years, 21 weeks, 6 days, 12 minutes.
• To count from 1 to 990,891,712,253,520 would take you about seventy-eight million, seven hundred sixty-eight thousand, two hundred twenty-eight 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 990891712253520 cubic inches would be around 8308 feet tall.

Recreational maths with 990891712253520

• 990891712253520 backwards is 025352217198099
• 990891712253520 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 990891712253520's digits is 63
• More coming soon!