20902910490

Names of 20902910490

• Cardinal: 20902910490 can be written as Twenty billion, nine hundred two million, nine hundred ten thousand, four hundred ninety.

Scientific notation

• Scientific notation: 2.090291049 × 10¹⁰

Factors of 20902910490

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 116

Divisors of 20902910490

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 14 15 17 18 21 22 27 30 33 34 35 42 45 49 51 54 55 63 66 70 71 77 85 90 98 99 102 105 110 119 126 135 142 147 153 154 165 170 187 189 198 210 213 231 238 245 255 270 289 294 297 306 315 330 343 355 357 374 378 385 426 441 459 462 490 495 497 510 539 561 578 594 595 630 639 686 693 710 714 735 765 770 781 833 867 882 918 935 945 990 994 1029 1065 1071 1078 1122 1155 1190 1207 1278 1309 1323 1386 1445 1470 1485 1491 1530 1562 1617 1666 1683 1715 1734 1785 1870 1890 1917 2023 2058 2079 2130 2142 2205 2295 2310 2343 2414 2485 2499 2601 2618 2646 2695 2805 2890 2970 2982 3087 3179 3195 3213 3234 3366 3430 3465 3479 3570 3621 3773 3834 3905 3927 4046 4158 4165 4335 4410 4473 4590 4686 4851 4970 4998 5049 5145 5202 5355 5390 5467 5610 5831 6035 6069 6174 6358 6390 6426 6545 6615 6930 6958 7029 7242 7455 7497 7546 7803 7810 7854 8085 8330 8415 8449 8670 8946 9163 9261 9537 9585 9702 10098 10115 10290 10395 10437 10710 10863 10934 11319 11662 11715 11781 12070 12138 12495 13005 13090 13230 13277 13419 14058 14161 14553 14910 14994 15435 15606 15895 16065 16170 16401 16830 16898 17395 17493 18105 18207 18326 18522 18865 19074 19170 19635 20230 20519 20790 20874 21087 21726 22253 22365 22491 22638 23430 23562 24255 24353 24990 25245 25347 26010 26554 26838 27335 27489 28322 28611 29106 29155 30345 30870 31311 31790 32130 32589 32802 33957 34790 34986 35145 35343 36210 36414 37485 37730 38269 39015 39270 39831 41038 42174 42245 42483 44506 44730 44982 45815 46305 47685 48510 48706 49203 50490 50694 52185 52479 54315 54621 54670 54978 56595 57222 58310 58905 59143 60690 61557 62622 64141 65178 66385 66759 67095 67914 70290 70686 70805 72765 73059 74970 76041 76538 78030 79662 82005 82467 84490 84966 85833 87465 91035 91630 92610 92939 93933 95370 98406 99127 101871 102595 104370 104958 105435 108630 109242 111265 112455 113190 114807 117810 118286 119493 121765 123114 126735 127449 128282 132770 133518 134190 137445 141610 143055 143633 145530 146118 147609 152082 155771 156555 157437 162945 164010 164934 169785 171666 174930 176715 177429 182070 184671 185878 187866 191345 192423 198254 199155 200277 203742 205190 210870 212415 219177 222530 224910 225709 228123 229614 238986 243530 246015 247401 253470 254898 262395 267883 273105 274890 278817 286110 287266 295218 295715 297381 307785 311542 313110 314874 320705 325890 333795 339570 344421 353430 354858 358479 365295 369342 380205 382347 382690 384846 398310 400554 412335 414001 424830 429165 430899 438354 451418 456246 464695 467313 469665 492030 494802 495635 509355 524790 532287 535766 546210 554013 557634 574035 577269 591430 594762 597465 600831 615570 637245 641410 650573 657531 667590 677127 688842 716958 718165 730590 738045 760410 764694 778855 787185 803649 824670 828002 836451 858330 861798 887145 892143 923355 929390 934626 939330 962115 991270 1001385 1005431 1018710 1033263 1064574 1090397 1095885 1108026 1128545 1140615 1148070 1154538 1194930 1201662 1237005 1242003 1274490 1292697 1301146 1315062 1339415 1354254 1394085 1401939 1436330 1476090 1486905 1557710 1574370 1579963 1596861 1607298 1672902 1722105 1731807 1774290 1784286 1792395 1846710 1911735 1924230 1951719 2002770 2010862 2031381 2066526 2070005 2154495 2180794 2191770 2257090 2281230 2336565 2410947 2474010 2484006 2509353 2585394 2661435 2676429 2678830 2770065 2788170 2803878 2886345 2973810 3004155 3016293 3159926 3193722 3252865 3271191 3287655 3385635 3444210 3463614 3584790 3726009 3823470 3878091 3903438 4018245 4062762 4140010 4182255 4205817 4308990 4460715 4554011 4673130 4739889 4821894 5018706 5027155 5166315 5322870 5352858 5451985 5540130 5772690 5855157 6008310 6032586 6094143 6210015 6463485 6505730 6542382 6575310 6771270 7009695 7038017 7232841 7452018 7756182 7899815 7984305 8036490 8364510 8411634 8659035 8921430 9048879 9108022 9479778 9758595 9813573 10054310 10156905 10332630 10903970 11059741 11178027 11710314 12054735 12188286 12420030 12546765 12926970 13382145 13662033 14019390 14076034 14219667 14465682 15081465 15799630 15968610 16355955 17318070 17565471 18097758 18630045 19390455 19517190 19627146 20313810 21029085 21114051 22119482 22356054 22770055 23699445 24109470 25093530 26764290 27146637 27324066 28439334 29275785 29440719 30162930 30470715 32711910 33179223 35130942 35190085 36164205 37260090 38780910 40986099 42058170 42228102 42659001 45244395 45540110 47398890 49067865 54293274 55298705 55890135 58551570 58881438 60941430 63342153 66358446 68310165 70380170 71098335 72328410 77418187 81972198 85318002 87827355 90488790 98135730 99537669 105570255 110597410 111780270 122958297 126684306 135733185 136620330 142196670 147203595 154836374 165896115 175654710 190026459 199075338 204930495 211140510 213295005 232254561 245916594 271466370 294407190 298613007 316710765 331792230 380052918 387090935 409860990 426590010 464509122 497688345 597226014 614791485 633421530 696763683 774181870 950132295 995376690 1161272805 1229582970 1393527366 1493065035 1900264590 2090291049 2322545610 2986130070 3483818415 4180582098 6967636830 10451455245 20902910490
• Sum of all divisors σ(n): 76391424000
• Sum of proper divisors (its aliquot sum) s(n): 55488513510
• 20902910490 is an abundant number, because the sum of its proper divisors (55488513510) is greater than itself. Its abundance is 34585603020

Bases of 20902910490

• Binary: 10011011101111010010001101000011010₂
• Hexadecimal: 0x4DDE91A1A
• Base-36: 9LP1WYI

Squares and roots of 20902910490

• 20902910490 squared (20902910490²) is 436931666952952040100
• 20902910490 cubed (20902910490³) is 9133143524564047535473190649000
• The square root of 20902910490 is 144578.3887377363
• The cube root of 20902910490 is 2754.6658198109

Scales and comparisons

• 20,902,910,490 seconds is equal to 664 years, 33 weeks, 4 days, 20 hours, 1 minute, 30 seconds.
• To count from 1 to 20,902,910,490 would take you about one thousand, three hundred twenty-nine 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 20902910490 cubic inches would be around 229.6 feet tall.

Recreational maths with 20902910490

• 20902910490 backwards is 09401920902
• The number of decimal digits it has is: 11
• The sum of 20902910490's digits is 36
• More coming soon!