81346729464

Names of 81346729464

• Cardinal: 81346729464 can be written as Eighty-one billion, three hundred forty-six million, seven hundred twenty-nine thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 8.1346729464 × 10¹⁰

Factors of 81346729464

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 864

Divisors of 81346729464

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 13 14 18 21 22 24 26 27 28 33 36 39 42 44 49 52 54 56 63 66 71 72 77 78 84 88 91 98 99 104 108 117 126 132 142 143 147 154 156 168 182 189 196 198 213 216 231 234 252 264 273 284 286 294 297 308 312 351 364 378 392 396 426 429 441 462 468 497 504 539 546 568 572 588 594 616 637 639 693 702 728 756 757 781 792 819 852 858 882 923 924 936 994 1001 1078 1092 1144 1176 1188 1274 1278 1287 1323 1386 1404 1491 1512 1514 1562 1617 1638 1704 1716 1764 1846 1848 1911 1917 1988 2002 2079 2156 2184 2271 2343 2376 2457 2548 2556 2574 2646 2769 2772 2808 2982 3003 3028 3124 3234 3276 3432 3479 3528 3692 3822 3834 3861 3976 4004 4158 4312 4473 4542 4686 4851 4914 5096 5112 5148 5292 5299 5467 5538 5544 5733 5964 6006 6056 6248 6461 6468 6552 6813 6958 7007 7029 7384 7644 7668 7722 8008 8307 8316 8327 8946 9009 9084 9372 9702 9828 9841 10153 10296 10437 10584 10598 10934 11076 11466 11928 12012 12922 12936 13419 13626 13916 14014 14058 14553 15288 15336 15444 15897 16401 16614 16632 16654 17199 17892 18018 18168 18744 19383 19404 19656 19682 20306 20439 20874 21021 21087 21196 21868 22152 22932 24024 24921 24981 25844 26838 27027 27252 27832 28028 28116 29106 29523 30459 30888 31311 31794 32802 33228 33308 34398 35784 36036 37093 38269 38766 38808 39364 40612 40878 41748 42042 42174 42392 43736 45227 45864 47691 49203 49842 49962 51688 53676 53747 54054 54504 56056 56232 58149 58212 58289 59046 60918 62622 63063 63588 65604 66456 66616 68796 68887 71071 72072 74186 74943 76538 77532 78728 81224 81756 83496 84084 84348 88569 90454 91377 93933 95382 98406 99684 99924 107352 107494 108108 108251 111279 114807 116298 116424 116578 118092 121836 125244 126126 127176 131208 135681 137592 137774 142142 143073 147609 148372 149886 153076 155064 161241 163512 168168 168696 174447 174867 177138 180908 182754 187866 189189 190764 196812 199368 199848 206661 213213 214988 216216 216502 222558 224829 229614 232596 233156 236184 243672 250488 252252 265707 271362 274131 275548 284284 286146 295218 296744 299772 306152 322482 324753 333837 344421 348894 349734 354276 361816 365508 375732 376229 378378 381528 393624 407043 408023 413322 426426 429976 433004 445116 449658 459228 465192 466312 482209 483723 497497 504504 524601 531414 542724 548262 551096 568568 572292 590436 591217 599544 619983 639639 644964 649506 667674 688842 697788 698711 699468 708552 731016 751464 752458 756756 757757 814086 816046 826644 852852 866008 890232 899316 918456 964418 967446 974259 994994 1001511 1033263 1049202 1062828 1085448 1096524 1128687 1144584 1180872 1182434 1221129 1224069 1239966 1279278 1289928 1299012 1335348 1377684 1395576 1397422 1398936 1446627 1451169 1492491 1504916 1513512 1515514 1573803 1628172 1632092 1653288 1705704 1773651 1798632 1859949 1918917 1928836 1934892 1948518 1989988 2003022 2066526 2096133 2098404 2125656 2193048 2257374 2273271 2364868 2442258 2448138 2479932 2558556 2598024 2633603 2670696 2755368 2794844 2893254 2902338 2922777 2984982 3009832 3031028 3147606 3256344 3264184 3386061 3547302 3672207 3719898 3837834 3857672 3869784 3897036 3979976 4006044 4133052 4138519 4192266 4196808 4339881 4477473 4514748 4546542 4729736 4884516 4890977 4896276 4959864 5117112 5267206 5304299 5320953 5589688 5786508 5804676 5845554 5969964 6062056 6288399 6295212 6772122 6819813 7094604 7344414 7439796 7675668 7685821 7794072 7900809 8012088 8266104 8277038 8384532 8679762 8954946 9029496 9093084 9769032 9781954 9792552 10158183 10534412 10608598 10641906 11016621 11573016 11609352 11691108 11939928 12415557 12576798 12590424 13019643 13432419 13544244 13639626 14189208 14672931 14688828 14879592 15351336 15371642 15801618 15912897 15962859 16554076 16769064 17359524 17909892 18186168 18865197 19563908 20316366 20459439 21068824 21217196 21283812 22033242 23057463 23382216 23702427 24831114 25153596 26039286 26864838 27088488 27279252 28969633 29345862 29377656 30743284 31603236 31825794 31925718 33108152 34236839 34719048 35819784 37246671 37730394 39127816 40632732 40918878 42434392 42567624 44018793 44066484 46114926 47404854 47738691 49662228 50307192 52078572 53729676 53800747 54558504 57939266 58691724 61486568 63206472 63651588 63851436 68473678 69172389 71107281 74493342 75460788 81265464 81837756 86908899 88037586 88132968 92229852 94809708 95477382 99324456 102710517 104157144 107459352 107601494 111740013 115878532 117383448 127303176 127702872 132056379 136947356 138344778 142214562 143216073 148986684 150921576 161402241 163675512 173817798 176075172 184459704 189619416 190954764 205421034 207517167 215202988 223480026 231757064 260726697 264112758 273894712 276689556 284429124 286432146 297973368 308131551 322804482 347635596 352150344 376605229 381909528 410842068 415034334 430405976 446960052 484206723 521453394 528225516 553379112 568858248 572864292 616263102 645608964 695271192 753210458 782180091 821684136 830068668 893920104 924394653 968413446 1042906788 1056451032 1129815687 1145728584 1232526204 1291217928 1452620169 1506420916 1564360182 1660137336 1848789306 1936826892 2085813576 2259631374 2465052408 2905240338 3012841832 3128720364 3389447061 3697578612 3873653784 4519262748 5810480676 6257440728 6778894122 7395157224 9038525496 10168341183 11620961352 13557788244 20336682366 27115576488 40673364732 81346729464
• Sum of all divisors σ(n): 313571865600
• Sum of proper divisors (its aliquot sum) s(n): 232225136136
• 81346729464 is an abundant number, because the sum of its proper divisors (232225136136) is greater than itself. Its abundance is 150878406672

Bases of 81346729464

• Binary: 1001011110000101001001001010111111000₂
• Hexadecimal: 0x12F0A495F8
• Base-36: 11DBQQ60

Squares and roots of 81346729464

• 81346729464 squared (81346729464²) is 6617290394489205727296
• 81346729464 cubed (81346729464³) is 538294931505239254766587072249344
• The square root of 81346729464 is 285213.4805088989
• The cube root of 81346729464 is 4332.9136316249

Scales and comparisons

• 81,346,729,464 seconds is equal to 2,586 years, 29 weeks, 6 days, 1 hour, 44 minutes, 24 seconds.
• To count from 1 to 81,346,729,464 would take you about five thousand, one hundred seventy-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 81346729464 cubic inches would be around 361.1 feet tall.

Recreational maths with 81346729464

• 81346729464 backwards is 46492764318
• 81346729464 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81346729464's digits is 54
• More coming soon!