991493917589490

Names of 991493917589490

• Cardinal: 991493917589490 can be written as Nine hundred ninety-one trillion, four hundred ninety-three billion, nine hundred seventeen million, five hundred eighty-nine thousand, four hundred ninety.

Scientific notation

• Scientific notation: 9.9149391758949 × 10¹⁴

Factors of 991493917589490

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 62245

Divisors of 991493917589490

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 30 35 42 70 73 105 146 210 219 365 438 511 601 730 1022 1095 1202 1533 1801 1803 2190 2555 3005 3066 3602 3606 4207 5110 5403 6010 7665 8414 9005 9015 10806 12607 12621 15330 18010 18030 21035 25214 25242 27015 37821 42070 43873 54030 59753 63035 63105 75642 87746 119506 126070 126210 131473 131619 179259 189105 219365 262946 263238 298765 307111 358518 378210 394419 418271 438730 597530 614222 657365 658095 788838 836542 896295 920311 921333 1082401 1254813 1314730 1316190 1535555 1792590 1840622 1842666 1972095 2091355 2164802 2509626 2760933 3071110 3247203 3944190 4182710 4361969 4601555 4606665 5412005 5521866 6274065 6494406 7576807 8723938 9203110 9213330 10824010 12548130 13085907 13804665 15153614 16236015 21809845 22730421 26171814 27609330 30533783 32472030 35911553 37884035 43619690 45460842 61067566 65429535 71823106 75768070 79015273 91601349 107615153 107734659 113652105 130859070 152668915 158030546 179557765 183202698 215230306 215469318 227304210 237045819 251380871 305337830 322845459 359115530 395076365 458006745 474091638 502761742 538075765 538673295 553106911 645690918 753306071 754142613 790152730 916013490 1076151530 1077346590 1106213822 1185229095 1256904355 1506612142 1508285226 1614227295 1659320733 2259918213 2370458190 2513808710 2621543369 2765534555 3228454590 3318641466 3766530355 3770713065 4519836426 5243086738 5531069110 7533060710 7541426130 7855906169 7864630107 8296603665 11299591065 13107716845 15711812338 15729260214 16593207330 18350803583 22599182130 23567718507 26215433690 36701607166 39279530845 39323150535 47135437014 54991343183 55052410749 64676706953 78559061690 78646301070 91754017915 109982686366 110104821498 117838592535 129353413906 164974029549 183508035830 194030120859 235677185070 274956715915 275262053745 323383534765 329948059098 388060241718 452736948671 549913431830 550524107490 646767069530 824870147745 905473897342 970150604295 1358210846013 1649740295490 1940301208590 2263684743355 2716421692026 4527369486710 4721399607569 6791054230065 9442799215138 13582108460130 14164198822707 23606998037845 28328397645414 33049797252983 47213996075690 66099594505966 70820994113535 99149391758949 141641988227070 165248986264915 198298783517898 330497972529830 495746958794745 991493917589490
• Sum of all divisors σ(n): 2762946425078784
• Sum of proper divisors (its aliquot sum) s(n): 1771452507489294
• 991493917589490 is an abundant number, because the sum of its proper divisors (1771452507489294) is greater than itself. Its abundance is 779958589899804

Bases of 991493917589490

• Binary: 11100001011100001000101010110000010011111111110010₂
• Hexadecimal: 0x385C22AC13FF2
• Base-36: 9RGE0MX2B6

Squares and roots of 991493917589490

• 991493917589490 squared (991493917589490²) is 983060188616954387612158460100
• 991493917589490 cubed (991493917589490³) is 974698197638087068971723710382728502344349000
• The square root of 991493917589490 is 31487996.4048125805
• The cube root of 991493917589490 is 99715.6561718435

Scales and comparisons

• 991,493,917,589,490 seconds is equal to 31,526,439 years, 35 weeks, 5 days, 4 hours, 11 minutes, 30 seconds.
• To count from 1 to 991,493,917,589,490 would take you about seventy-eight million, eight hundred sixteen thousand and ninety-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 991493917589490 cubic inches would be around 8309.6 feet tall.

Recreational maths with 991493917589490

• 991493917589490 backwards is 094985719394199
• The number of decimal digits it has is: 15
• The sum of 991493917589490's digits is 87
• More coming soon!