18197378982640

Names of 18197378982640

• Cardinal: 18197378982640 can be written as Eighteen trillion, one hundred ninety-seven billion, three hundred seventy-eight million, nine hundred eighty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.819737898264 × 10¹³

Factors of 18197378982640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 124880

Divisors of 18197378982640

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 19 20 22 26 38 40 44 52 55 61 65 76 80 88 95 104 110 121 122 130 143 152 176 190 208 209 220 242 244 247 260 286 304 305 380 418 440 484 488 494 520 572 605 610 671 715 760 793 836 880 968 976 988 1040 1045 1144 1159 1210 1220 1235 1342 1430 1520 1573 1586 1672 1936 1976 2090 2288 2299 2318 2420 2440 2470 2684 2717 2860 3146 3172 3344 3355 3952 3965 4180 4598 4636 4840 4880 4940 5368 5434 5720 5795 6292 6344 6710 7381 7865 7930 8360 8723 9196 9272 9680 9880 10736 10868 11440 11495 11590 12584 12688 12749 13420 13585 14762 15067 15730 15860 16720 17446 18392 18544 19760 21736 22990 23180 25168 25498 26840 27170 29524 29887 30134 31460 31720 34892 36784 36905 43472 43615 45980 46360 50996 53680 54340 59048 59774 60268 62920 63440 63745 69784 73810 75335 87230 91960 92720 95953 101992 108680 118096 119548 120536 124769 125840 127490 139568 140239 147620 149435 150670 165737 174460 183920 191906 203984 217360 239096 241072 249538 254980 280478 295240 298870 301340 331474 348920 383812 478192 479765 499076 509960 560956 590480 597740 602680 623845 662948 697840 701195 767624 828685 959530 998152 1019920 1121912 1195480 1205360 1247690 1325896 1372459 1402390 1535248 1621997 1657370 1823107 1919060 1996304 2243824 2370611 2390960 2495380 2651792 2744918 2804780 3243994 3314740 3646214 3838120 4741222 4990760 5489836 5609560 6487988 6629480 6862295 7292428 7610909 7676240 8109985 9115535 9482444 9981520 10979672 11219120 11853055 12975976 13258960 13724590 14584856 15097049 15221818 16219970 17841967 18231070 18964888 21959344 23706110 25951952 26076721 27449180 29169712 30194098 30443636 30817943 32439940 35683934 36462140 37929776 38054545 47412220 52153442 54898360 60388196 60887272 61635886 64879880 71367868 72924280 75485245 76109090 83719999 89209835 94824440 98941817 104306884 109796720 120776392 121774544 123271772 129759760 130383605 142735736 144607271 145848560 150970490 152218180 154089715 167439998 178419670 189648880 196261637 197883634 208613768 241552784 246543544 260767210 285471472 286843931 289214542 301940980 304436360 308179430 334879996 338997373 356839340 392523274 395767268 417227536 418599995 493087088 494709085 521534420 573687862 578429084 603881960 608872720 616358860 669759992 677994746 713678680 723036355 785046548 791534536 837199990 920919989 981308185 989418170 1043068840 1088359987 1147375724 1156858168 1207763920 1232717720 1339519984 1355989492 1427357360 1434219655 1446072710 1570093096 1583069072 1590679981 1674399980 1694986865 1841839978 1879894523 1962616370 1978836340 2086137680 2176719974 2294751448 2313716336 2465435440 2711978984 2868439310 2892145420 3140186192 3181359962 3348799960 3389973730 3683679956 3728971103 3759789046 3925232740 3957672680 4353439948 4589502896 4604599945 5423957968 5441799935 5736878620 5784290840 6362719924 6697599920 6779947460 7367359912 7457942206 7519578092 7850465480 7915345360 7953399905 8706879896 9209199890 9399472615 10883599870 11473757240 11568581680 11971959857 12725439848 13559894920 14734719824 14915884412 15039156184 15700930960 15906799810 17413759792 17497479791 18418399780 18644855515 18798945230 20678839753 21767199740 22947514480 23943919714 25450879696 27119789840 29831768824 30078312368 31813599620 34994959582 36836799560 37289711030 37597890460 41357679506 43534399480 47887839428 59663537648 59859799285 63627199240 69989919164 73673599120 74579422060 75195780920 82715359012 87068798960 87487398955 95775678856 103394198765 119719598570 127254398480 139979838328 149158844120 150391561840 165430718024 174974797910 191551357712 206788397530 227467237283 239439197140 279959676656 298317688240 330861436048 349949595820 413576795060 454934474566 478878394280 699899191640 827153590120 909868949132 957756788560 1137336186415 1399798383280 1654307180240 1819737898264 2274672372830 3639475796528 4549344745660 9098689491320 18197378982640
• Sum of all divisors σ(n): 53582686113600
• Sum of proper divisors (its aliquot sum) s(n): 35385307130960
• 18197378982640 is an abundant number, because the sum of its proper divisors (35385307130960) is greater than itself. Its abundance is 17187928148320

Bases of 18197378982640

• Binary: 100001000110011101000010011110110001011110000₂
• Hexadecimal: 0x108CE84F62F0
• Base-36: 6G7RDLQLS

Squares and roots of 18197378982640

• 18197378982640 squared (18197378982640²) is 331144601837828001421369600
• 18197378982640 cubed (18197378982640³) is 6025963817698382390772507205603423744000
• The square root of 18197378982640 is 4265838.6025071319
• The cube root of 18197378982640 is 26302.8583797063

Scales and comparisons

• 18,197,378,982,640 seconds is equal to 578,620 years, 18 weeks, 6 days, 7 hours, 10 minutes, 40 seconds.
• To count from 1 to 18,197,378,982,640 would take you about one million, four hundred forty-six thousand, five hundred fifty 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 18197378982640 cubic inches would be around 2191.9 feet tall.

Recreational maths with 18197378982640

• 18197378982640 backwards is 04628987379181
• The number of decimal digits it has is: 14
• The sum of 18197378982640's digits is 73
• More coming soon!