3997891805908

Names of 3997891805908

• Cardinal: 3997891805908 can be written as Three trillion, nine hundred ninety-seven billion, eight hundred ninety-one million, eight hundred five thousand, nine hundred eight.

Scientific notation

• Scientific notation: 3.997891805908 × 10¹²

Factors of 3997891805908

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 310

Divisors of 3997891805908

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 4 7 11 13 14 22 26 28 44 49 52 77 91 98 121 143 154 169 182 196 242 277 286 308 338 364 484 539 554 572 637 676 847 1001 1078 1108 1183 1274 1573 1694 1859 1939 2002 2156 2197 2366 2548 3047 3146 3388 3601 3718 3878 4004 4394 4732 5929 6094 6292 7007 7202 7436 7756 8281 8788 11011 11858 12188 13013 13573 14014 14404 15379 16562 20449 21329 22022 23716 24167 25207 26026 27146 28028 30758 33124 33517 39611 40898 42658 44044 46813 48334 50414 52052 54292 61516 67034 76729 77077 79222 81796 85316 91091 93626 96668 100828 107653 134068 143143 149303 153458 154154 158444 169169 176449 182182 187252 215306 234619 265837 277277 286286 298606 306916 308308 327691 338338 352898 364364 430612 435721 469238 514943 531674 537103 554554 572572 597212 608569 655382 676676 705796 844019 871442 938476 997477 1002001 1029886 1063348 1074206 1109108 1184183 1217138 1310764 1642333 1688038 1742884 1860859 1940939 1994954 2004002 2059772 2148412 2293837 2368366 2434276 3050047 3284666 3376076 3604601 3721718 3759721 3881878 3989908 4008004 4259983 4587674 4736732 5664373 5908133 6100094 6569332 6694259 6982339 7209202 7443436 7519442 7763756 8519966 9175348 9284209 10972247 11328746 11816266 12200188 12967201 13026013 13388518 13964678 14418404 15038884 17039932 18568418 21350329 21944494 22657492 23632532 25232207 25934402 26052026 26777036 27929356 29819881 37136836 39650611 41356931 42700658 43888988 46859813 48876373 50464414 51868804 52104052 59639762 64989463 73636849 76805729 79301222 82713862 85401316 90770407 93719626 97752746 100928828 119279524 120694717 129978926 142639211 147273698 153611458 158602444 165427724 168573613 181540814 187439252 195505492 241389434 259957852 277554277 285278422 294547396 307222916 328018691 337147226 363081628 454926241 482778868 515457943 537640103 555108554 570556844 635392849 656037382 674294452 844863019 909852482 998474477 1030915886 1075280206 1110217108 1180015291 1270785698 1312074764 1569031321 1689726038 1819704964 1854309743 1996948954 2061831772 2150560412 2360030582 2541571396 3138062642 3379452076 3608205601 3708619486 3993897908 4720061164 5914041133 6276125284 6989321339 7216411202 7417238972 8260107037 10983219247 11828082266 12980168201 13978642678 14432822404 16520214074 20397407173 21966438494 23656164532 25960336402 27957285356 33040428148 40794814346 43932876988 51920672804 76882534729 81589628692 90861177407 142781850211 153765069458 181722354814 285563700422 307530138916 363444709628 571127400844 999472951477 1998945902954 3997891805908
• Sum of all divisors σ(n): 9725942516220
• Sum of proper divisors (its aliquot sum) s(n): 5728050710312
• 3997891805908 is an abundant number, because the sum of its proper divisors (5728050710312) is greater than itself. Its abundance is 1730158904404

Bases of 3997891805908

• Binary: 111010001011010100111010111100001011010100₂
• Hexadecimal: 0x3A2D4EBC2D4
• Base-36: 1F0LTK444

Squares and roots of 3997891805908

• 3997891805908 squared (3997891805908²) is 15983138891746329543704464
• 3997891805908 cubed (3997891805908³) is 63898860008002123135311133193201173312
• The square root of 3997891805908 is 1999472.8820136571
• The cube root of 3997891805908 is 15871.2212383295

Scales and comparisons

• 3,997,891,805,908 seconds is equal to 127,120 years, 30 weeks, 5 days, 21 hours, 38 minutes, 28 seconds.
• To count from 1 to 3,997,891,805,908 would take you about three hundred seventeen thousand, eight hundred 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 3997891805908 cubic inches would be around 1322.6 feet tall.

Recreational maths with 3997891805908

• 3997891805908 backwards is 8095081987993
• The number of decimal digits it has is: 13
• The sum of 3997891805908's digits is 76
• More coming soon!