81401832512

Names of 81401832512

• Cardinal: 81401832512 can be written as Eighty-one billion, four hundred one million, eight hundred thirty-two thousand, five hundred twelve.

Scientific notation

• Scientific notation: 8.1401832512 × 10¹⁰

Factors of 81401832512

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 13996

Divisors of 81401832512

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 4 7 8 11 13 14 16 22 26 28 32 44 49 52 56 64 77 88 91 98 104 112 143 154 169 176 182 196 208 224 286 308 338 352 364 392 416 448 539 572 616 637 676 704 728 784 832 1001 1078 1144 1183 1232 1274 1352 1456 1568 1859 2002 2156 2288 2366 2464 2548 2704 2912 3136 3718 4004 4312 4576 4732 4928 5096 5408 5824 7007 7436 8008 8281 8624 9152 9464 10192 10816 13013 13963 14014 14872 16016 16562 17248 18928 20384 26026 27926 28028 29744 32032 33124 34496 37856 40768 52052 55852 56056 59488 64064 66248 75712 91091 97741 104104 111704 112112 118976 132496 153593 181519 182182 195482 208208 223408 224224 264992 307186 363038 364364 390964 416416 446816 448448 529984 614372 684187 726076 728728 781928 832832 893632 1075151 1228744 1270633 1368374 1452152 1457456 1563856 1996709 2150302 2359747 2457488 2541266 2736748 2904304 2914912 3127712 3993418 4300604 4719494 4914976 5082532 5473496 5808608 5829824 6255424 7526057 7986836 8601208 8894431 9438988 9829952 10165064 10946992 11617216 13976963 15052114 15973672 16518229 17202416 17788862 18877976 20330128 21893984 25957217 27953926 30104228 31947344 33036458 34404832 35577724 37755952 40660256 43787968 51914434 55907852 60208456 63894688 66072916 68809664 71155448 75511904 81320512 97838741 103828868 111815704 115627603 120416912 127789376 132145832 142310896 151023808 181700519 195677482 207657736 223631408 231255206 240833824 264291664 284621792 363401038 391354964 415315472 447262816 462510412 481667648 528583328 569243584 726802076 782709928 830630944 894525632 925020824 1057166656 1271903633 1453604152 1565419856 1661261888 1850041648 2543807266 2907208304 3130839712 3700083296 5087614532 5814416608 6261679424 7400166592 10175229064 11628833216 20350458128 40700916256 81401832512
• Sum of all divisors σ(n): 221983529616
• Sum of proper divisors (its aliquot sum) s(n): 140581697104
• 81401832512 is an abundant number, because the sum of its proper divisors (140581697104) is greater than itself. Its abundance is 59179864592

Bases of 81401832512

• Binary: 1001011110011111011010110010001000000₂
• Hexadecimal: 0x12F3ED6440
• Base-36: 11E8JRY8

Squares and roots of 81401832512

• 81401832512 squared (81401832512²) is 6626258336311700230144
• 81401832512 cubed (81401832512³) is 539389571273688789960133741641728
• The square root of 81401832512 is 285310.0638112859
• The cube root of 81401832512 is 4333.8917609225

Scales and comparisons

• 81,401,832,512 seconds is equal to 2,588 years, 16 weeks, 6 days, 20 hours, 8 minutes, 32 seconds.
• To count from 1 to 81,401,832,512 would take you about five thousand, one hundred seventy-six 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 81401832512 cubic inches would be around 361.2 feet tall.

Recreational maths with 81401832512

• 81401832512 backwards is 21523810418
• The number of decimal digits it has is: 11
• The sum of 81401832512's digits is 35
• More coming soon!