12991505323030728

Names of 12991505323030728

• Cardinal: 12991505323030728 can be written as Twelve quadrillion, nine hundred ninety-one trillion, five hundred five billion, three hundred twenty-three million, thirty thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.2991505323030728 × 10¹⁶

Factors of 12991505323030728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3237

Divisors of 12991505323030728

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 12 13 24 26 39 52 53 78 104 106 156 159 169 212 312 318 338 424 507 636 676 689 1014 1187 1272 1352 1378 1979 2028 2067 2197 2374 2756 3561 3958 4056 4134 4394 4748 5512 5937 6591 7122 7916 8268 8788 8957 9496 11874 13182 14244 15431 15832 16536 17576 17914 23748 25727 26364 26871 28488 30862 35828 46293 47496 51454 52728 53742 61724 62911 71656 77181 92586 102908 104887 107484 116441 123448 125822 154362 185172 188733 200603 205816 209774 214968 232882 251644 308724 314661 334451 349323 370344 377466 401206 419548 465764 503288 601809 617448 629322 668902 698646 754932 802412 817843 839096 931528 1003353 1203618 1258644 1337804 1363531 1397292 1509864 1604824 1635686 2006706 2349073 2407236 2453529 2517288 2607839 2675608 2727062 2794584 3271372 3916441 4013412 4090593 4347863 4698146 4814472 4907058 5215678 5454124 6542744 7047219 7823517 7832882 8026824 8181186 8695726 9396292 9814116 10431356 10631959 10908248 11749323 13043589 14094438 15647034 15665764 16362372 17391452 17725903 18792584 19628232 20862712 21263918 23498646 26087178 28188876 30537949 31294068 31331528 31895877 32724744 34782904 35451806 42527836 46997292 50913733 52174356 53177709 56377752 61075898 62588136 63791754 70903612 85055672 91613847 93994584 101827466 104348712 106355418 122151796 124500869 127583508 138215467 141807224 152741199 183227694 203654932 207571373 212710836 230436739 244303592 249001738 255167016 276430934 305482398 366455388 373502607 396993337 407309864 414646401 415142746 425421672 460873478 498003476 552861868 610964796 622714119 661878529 691310217 732910776 747005214 793986674 829292802 830285492 921746956 996006952 1105723736 1190980011 1221929592 1245428238 1323757058 1382620434 1494010428 1587973348 1618511297 1658585604 1660570984 1843493912 1985635587 2381960022 2490856476 2647514116 2698427849 2765240868 2988020856 3175946696 3237022594 3317171208 3971271174 4648815467 4763920044 4855533891 4981712952 5160913381 5295028232 5396855698 5530481736 6474045188 7942542348 8095283547 8604420877 9297630934 9527840088 9711067782 10321826762 10793711396 12948090376 13946446401 15482740143 15885084696 16190567094 17208841754 18595261868 19422135564 20643653524 21040646861 21587422792 25813262631 27892892802 30965480286 32381134188 34417683508 35079562037 37190523736 38844271128 41287307048 42081293722 51626525262 55785785604 60434601071 61930960572 63121940583 64762268376 68835367016 70159124074 84162587444 103253050524 105238686111 111571571208 120869202142 123861921144 126243881166 140318248148 168325174888 181303803213 206506101048 210477372222 241738404284 246387219751 252487762332 273528409193 280636496296 362607606426 420954744444 456034306481 483476808568 492774439502 504975524664 547056818386 725215212852 739161659253 785649813923 820585227579 841909488888 912068612962 985548879004 1094113636772 1368102919443 1450430425704 1478323318506 1571299627846 1641170455158 1824137225924 1971097758008 2188227273544 2356949441769 2736205838886 2956646637012 3142599255692 3203033856763 3282340910316 3648274451848 4713898883538 5472411677772 5913293274024 6285198511384 6406067713526 6564681820632 9427797767076 9609101570289 10213447580999 10944823355544 12812135427052 18855595534152 19218203140578 20426895161998 25624270854104 30640342742997 38436406281156 40853790323996 41639440137919 61280685485994 76872812562312 81707580647992 83278880275838 122561370971988 124918320413757 166557760551676 245122741943976 249836640827514 333115521103352 499673281655028 541312721792947 999346563310056 1082625443585894 1623938165378841 2165250887171788 3247876330757682 4330501774343576 6495752661515364 12991505323030728
• Sum of all divisors σ(n): 35896284882057600
• Sum of proper divisors (its aliquot sum) s(n): 22904779559026872
• 12991505323030728 is an abundant number, because the sum of its proper divisors (22904779559026872) is greater than itself. Its abundance is 9913274235996144

Bases of 12991505323030728

• Binary: 101110001001111011010010001011111000000111100011001000₂
• Hexadecimal: 0x2E27B48BE078C8
• Base-36: 3JX3R5ILSCO

Squares and roots of 12991505323030728

• 12991505323030728 squared (12991505323030728²) is 168779210558335740280131232209984
• 12991505323030728 cubed (12991505323030728³) is 2192696012385542819452506955021884062248180388352
• The square root of 12991505323030728 is 113980284.7997438897
• The cube root of 12991505323030728 is 235082.2426676065

Scales and comparisons

• 12,991,505,323,030,728 seconds is equal to 413,089,683 years, 47 weeks, 1 day, 11 hours, 38 minutes, 48 seconds.
• To count from 1 to 12,991,505,323,030,728 would take you about one billion, two hundred thirty-nine million, two hundred sixty-nine thousand and fifty-one 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 12991505323030728 cubic inches would be around 19590.2 feet tall.

Recreational maths with 12991505323030728

• 12991505323030728 backwards is 82703032350519921
• The number of decimal digits it has is: 17
• The sum of 12991505323030728's digits is 60
• More coming soon!