18940489957257648

Names of 18940489957257648

• Cardinal: 18940489957257648 can be written as Eighteen quadrillion, nine hundred forty trillion, four hundred eighty-nine billion, nine hundred fifty-seven million, two hundred fifty-seven thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.8940489957257648 × 10¹⁶

Factors of 18940489957257648

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4249

Divisors of 18940489957257648

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 29 39 48 52 58 73 78 87 104 116 146 156 174 208 219 232 292 312 348 377 438 464 584 624 696 754 841 876 949 1131 1168 1392 1508 1682 1752 1898 2117 2262 2523 2847 3016 3364 3504 3796 4129 4234 4524 5046 5694 6032 6351 6728 7592 8258 8468 9048 10092 10933 11388 12387 12702 13456 15184 16516 16936 18096 20184 21866 22776 24389 24774 25404 27521 32799 33032 33872 40368 43732 45552 48778 49548 50808 53677 55042 61393 65598 66064 73167 82563 87464 97556 99096 101616 107354 110084 119741 122786 131196 146334 161031 165126 174928 184179 195112 198192 214708 220168 239482 245572 262392 292668 301417 317057 322062 330252 359223 368358 390224 429416 440336 478964 491144 524784 585336 602834 634114 644124 660504 718446 736716 798109 858832 904251 951171 957928 982288 1170672 1205668 1268228 1288248 1321008 1436892 1473432 1556633 1596218 1780397 1808502 1902342 1915856 2394327 2411336 2536456 2576496 2873784 2946864 3113266 3192436 3472489 3560794 3617004 3804684 3918421 4669899 4788654 4822672 5072912 5341191 5747568 6226532 6384872 6944978 7121588 7234008 7609368 7836842 8741093 9339798 9577308 10417467 10682382 11755263 12453064 12769744 13889956 14243176 14468016 15218736 15673684 17048641 17482186 18679596 19154616 20834934 21364764 23145161 23510526 24906128 26223279 27779912 28486352 31347368 34097282 34964372 37359192 38309232 41669868 42729528 45142357 46290322 47021052 51145923 52446558 55559824 62694736 68194564 69435483 69928744 74718384 83339736 85459056 90284714 92580644 94042104 100702181 102291846 104893116 113634209 135427071 136389128 138870966 139857488 166679472 180569428 185161288 188084208 201404362 204583692 209786232 221632333 227268418 253491697 270854142 272778256 277741932 302106543 340902627 361138856 370322576 402808724 409167384 419572464 443264666 454536836 494410589 506983394 541708284 555483864 604213086 664896999 681805254 722277712 760475091 805617448 818334768 886529332 909073672 988821178 1013966788 1083416568 1110967728 1208426172 1244550793 1309128353 1329793998 1363610508 1483231767 1520950182 1611234896 1773058664 1818147344 1977642356 2027933576 2166833136 2416852344 2489101586 2618256706 2659587996 2727221016 2966463534 3041900364 3295392061 3546117328 3733652379 3927385059 3955284712 4055867152 4833704688 4978203172 5236513412 5319175992 5454442032 5932927068 6083800728 6427337657 6590784122 7351259213 7467304758 7854770118 7910569424 9886176183 9956406344 10473026824 10638351984 11865854136 12167601456 12854675314 13181568244 14337907081 14702518426 14934609516 15709540236 16179160309 19282012971 19772352366 19912812688 20946053648 22053777639 23731708272 25709350628 26363136488 28675814162 29405036852 29869219032 31419080472 32358320618 36091972997 38564025942 39544704732 43013721243 44107555278 48537480927 51418701256 52726272976 57351628324 58810073704 59738438064 62838160944 64716641236 72183945994 77128051884 79089409464 86027442486 88215110556 95566369769 97074961854 102837402512 108275918991 114703256648 117620147408 129433282472 144367891988 154256103768 158178818928 172054884972 176430221112 186392792053 191132739538 194149923708 216551837982 229406513296 258866564944 286699109307 288735783976 308512207536 344109769944 352860442224 372785584106 382265479076 388299847416 415799305349 433103675964 469195648961 559178376159 573398218614 577471567952 688219539888 745571168212 764530958152 776599694832 831598610698 866207351928 938391297922 1046667216913 1118356752318 1146796437228 1247397916047 1407586946883 1491142336424 1529061916304 1663197221396 1732414703856 1876782595844 2093334433826 2236713504636 2293592874456 2494795832094 2815173893766 2982284672848 3140001650739 3326394442792 3753565191688 4186668867652 4473427009272 4587185748912 4989591664188 5405390969537 5630347787532 6280003301478 6652788885584 7507130383376 8373337735304 8946854018544 9979183328376 10810781939074 11260695575064 12560006602956 13606673819869 16216172908611 16746675470608 19958366656752 21621563878148 22521391150128 25120013205912 27213347639738 30353349290477 32432345817222 40820021459607 43243127756296 50240026411824 54426695279476 60706698580954 64864691634444 81640042919214 86486255512592 91060047871431 108853390558952 121413397161908 129729383268888 163280085838428 182120095742862 217706781117904 242826794323816 259458766537776 326560171676856 364240191485724 394593540776201 485653588647632 653120343353712 728480382971448 789187081552402 1183780622328603 1456960765942896 1578374163104804 2367561244657206 3156748326209608 4735122489314412 6313496652419216 9470244978628824 18940489957257648
• Sum of all divisors σ(n): 55336252808773440
• Sum of proper divisors (its aliquot sum) s(n): 36395762851515792
• 18940489957257648 is an abundant number, because the sum of its proper divisors (36395762851515792) is greater than itself. Its abundance is 17455272894258144

Bases of 18940489957257648

• Binary: 1000011010010100100011001110111110001100011000110110000₂
• Hexadecimal: 0x434A4677C631B0
• Base-36: 56HUCYRLBQO

Squares and roots of 18940489957257648

• 18940489957257648 squared (18940489957257648²) is 358742159820977820561948654491904
• 18940489957257648 cubed (18940489957257648³) is 6794752275334148528266891880265715596740658081792
• The square root of 18940489957257648 is 137624452.6138347553
• The cube root of 18940489957257648 is 266561.2828113205

Scales and comparisons

• 18,940,489,957,257,648 seconds is equal to 602,248,993 years, 44 weeks, 4 days, 13 hours, 20 minutes, 48 seconds.
• To count from 1 to 18,940,489,957,257,648 would take you about one billion, eight hundred six million, seven hundred forty-six thousand, nine hundred eighty-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 18940489957257648 cubic inches would be around 22213.4 feet tall.

Recreational maths with 18940489957257648

• 18940489957257648 backwards is 84675275998404981
• The number of decimal digits it has is: 17
• The sum of 18940489957257648's digits is 96
• More coming soon!