81663143016

Names of 81663143016

• Cardinal: 81663143016 can be written as Eighty-one billion, six hundred sixty-three million, one hundred forty-three thousand and sixteen.

Scientific notation

• Scientific notation: 8.1663143016 × 10¹⁰

Factors of 81663143016

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 170

Divisors of 81663143016

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 21 24 26 28 31 39 41 42 52 56 62 73 78 82 84 91 93 104 123 124 146 156 164 168 169 182 186 217 219 246 248 273 287 292 312 328 338 364 372 403 434 438 492 507 511 533 546 574 584 651 676 728 744 806 861 868 876 949 961 984 1014 1022 1066 1092 1148 1183 1209 1271 1302 1352 1533 1599 1612 1722 1736 1752 1898 1922 2028 2044 2132 2184 2263 2296 2366 2418 2542 2604 2821 2847 2883 2993 3066 3198 3224 3444 3549 3731 3796 3813 3844 4056 4088 4264 4526 4732 4836 5084 5208 5239 5642 5694 5766 5986 6132 6396 6643 6727 6789 6888 6929 7098 7462 7592 7626 7688 8463 8897 8979 9052 9464 9672 10168 10478 11193 11284 11388 11532 11972 12264 12337 12493 12792 13286 13454 13578 13858 14196 14924 15252 15717 15841 16523 16926 17794 17958 18104 19929 20181 20787 20951 20956 22386 22568 22776 23064 23944 24674 24986 26572 26691 26908 27156 27716 28392 29419 29848 30504 31434 31682 33046 33852 35588 35916 36673 37011 37479 38909 39401 39858 40362 41574 41902 41912 44772 47523 48503 49348 49569 49972 53144 53382 53816 54312 55432 58838 62853 62868 63364 66092 67704 70153 71176 71832 73346 74022 74958 77818 78802 79716 80724 83148 83804 86359 87451 88257 89544 92783 95046 97006 98696 99138 99944 106764 110019 115661 116727 117676 118203 125706 125736 126728 132184 140306 145509 146692 148044 149916 155636 157604 159432 161448 162409 166296 167608 172718 174902 176514 185566 190092 194012 198276 205933 210459 213528 214799 220038 231322 233454 235352 236406 251412 259077 262353 272363 275807 278349 280612 291018 293384 296088 299832 311272 315208 324818 345436 346983 349804 353028 371132 380184 382447 388024 396552 411866 420918 429598 440076 462644 466908 472812 487227 491071 502824 505817 512213 518154 524706 544726 551614 556698 561224 582036 617799 644397 649481 649636 690872 693966 699608 706056 742264 764894 817089 823732 827421 841836 859196 880152 911989 925288 933816 945624 974454 982142 1011634 1024426 1036308 1049412 1089452 1103228 1113396 1136863 1147341 1164072 1206179 1235598 1288794 1298962 1299272 1387932 1473213 1503593 1517451 1529788 1536639 1634178 1647464 1654842 1683672 1718392 1823978 1948443 1948908 1964284 2023268 2048852 2072616 2098824 2178904 2206456 2226792 2273726 2294682 2412358 2471196 2577588 2597924 2677129 2735967 2775864 2876273 2946426 3007186 3034902 3059576 3073278 3268356 3309684 3410589 3540719 3585491 3618537 3647956 3896886 3897816 3928568 4046536 4097704 4510779 4547452 4589364 4824716 4942392 5155176 5195848 5354258 5471934 5752546 5892852 6014372 6069804 6146556 6383923 6536712 6619368 6658769 6821178 7081438 7170982 7237074 7295912 7793772 8031387 8443253 8628819 9021558 9094904 9178728 9649432 10622157 10708516 10756473 10943868 11505092 11785704 11855857 12028744 12139608 12293112 12767846 13317538 13642356 14162876 14341964 14474148 15587544 15680327 16062774 16886506 17257638 18043116 19151769 19976307 20133911 21244314 21417032 21512946 21887736 23010184 23711714 25329759 25535692 26635076 27284712 28325752 28683928 28948296 31360654 32125548 33773012 34515276 35567571 36086232 37391549 38303538 39952614 40267822 42488628 43025892 46611383 47040981 47423428 50659518 51071384 53270152 60401733 62721308 64251096 67546024 69030552 71135142 74783098 76607076 79905228 80535644 82990999 84977256 86051784 93222766 94081962 94846856 101319036 109762289 112174647 120803466 125442616 139834149 142270284 149566196 153214152 159810456 161071288 165981998 186445532 188163924 202638072 219524578 224349294 241606932 248972997 261740843 279668298 284540568 299132392 329286867 331963996 372891064 376327848 439049156 448698588 483213864 486090137 497945994 523481686 559336596 658573734 663927992 785222529 878098312 897397176 972180274 995891988 1046963372 1118673192 1317147468 1458270411 1570445058 1944360548 1991783976 2093926744 2634294936 2916540822 3140890116 3402630959 3888721096 5833081644 6281780232 6805261918 10207892877 11666163288 13610523836 20415785754 27221047672 40831571508 81663143016
• Sum of all divisors σ(n): 271095672960
• Sum of proper divisors (its aliquot sum) s(n): 189432529944
• 81663143016 is an abundant number, because the sum of its proper divisors (189432529944) is greater than itself. Its abundance is 107769386928

Bases of 81663143016

• Binary: 1001100000011100000001010110001101000₂
• Hexadecimal: 0x130380AC68
• Base-36: 11IK4KFC

Squares and roots of 81663143016

• 81663143016 squared (81663143016²) is 6668868927251669576256
• 81663143016 cubed (81663143016³) is 544600796961111592430569845828096
• The square root of 81663143016 is 285767.6381537979
• The cube root of 81663143016 is 4338.5242601625

Scales and comparisons

• 81,663,143,016 seconds is equal to 2,596 years, 33 weeks, 6 hours, 23 minutes, 36 seconds.
• To count from 1 to 81,663,143,016 would take you about five thousand, one hundred ninety-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 81663143016 cubic inches would be around 361.5 feet tall.

Recreational maths with 81663143016

• 81663143016 backwards is 61034136618
• 81663143016 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81663143016's digits is 39
• More coming soon!