81504310272

Names of 81504310272

• Cardinal: 81504310272 can be written as Eighty-one billion, five hundred four million, three hundred ten thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 8.1504310272 × 10¹⁰

Factors of 81504310272

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 328

Divisors of 81504310272

• Number of divisors d(n): 704
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 23 24 28 32 33 42 44 46 48 56 64 66 69 71 77 84 88 92 96 112 128 132 138 142 154 161 168 176 184 192 211 213 224 231 253 256 264 276 284 308 322 336 352 368 384 422 426 448 462 483 497 506 512 528 552 568 616 633 644 672 704 736 759 768 781 844 852 896 924 966 994 1012 1024 1056 1104 1136 1232 1266 1288 1344 1408 1472 1477 1491 1518 1536 1562 1633 1688 1704 1771 1792 1848 1932 1988 2024 2112 2208 2272 2321 2343 2464 2532 2576 2688 2816 2944 2954 2982 3036 3072 3124 3266 3376 3408 3542 3584 3696 3864 3976 4048 4224 4416 4431 4544 4642 4686 4853 4899 4928 5064 5152 5313 5376 5467 5632 5888 5908 5964 6072 6248 6532 6752 6816 6963 7084 7168 7392 7728 7952 8096 8448 8832 8862 9088 9284 9372 9706 9798 9856 10128 10304 10626 10752 10934 11264 11431 11776 11816 11928 12144 12496 13064 13504 13632 13926 14168 14559 14784 14981 15456 15904 16192 16247 16401 16896 17664 17724 17963 18176 18568 18744 19412 19596 19712 20256 20608 21252 21504 21868 22862 23552 23632 23856 24288 24992 26128 27008 27264 27852 28336 29118 29568 29962 30912 31808 32384 32494 32802 33792 33971 34293 35328 35448 35926 36352 37136 37488 38824 39192 39424 40512 41216 42504 43736 44943 45724 47264 47712 48576 48741 49984 52256 53383 53889 54016 54528 55704 56672 58236 59136 59924 61824 63616 64768 64988 65604 67942 68586 70656 70896 71852 72704 74272 74976 77648 78384 78848 81024 82432 85008 87472 89886 91448 94528 95424 97152 97482 99968 101913 104512 104867 106766 107778 108032 109056 111408 113344 116472 118272 119848 123648 125741 127232 129536 129976 131208 135884 137172 141792 143704 148544 149952 155296 156768 160149 162048 164791 164864 170016 174944 179772 182896 189056 190848 194304 194964 199936 203826 209024 209734 213532 215556 216064 218112 222816 226688 232944 236544 239696 247296 251482 254464 259072 259952 262416 271768 274344 283584 287408 297088 299904 310592 313536 314601 320298 324096 329582 340032 344563 349888 359544 365792 373681 377223 378112 381696 388608 389928 399872 407652 418048 419468 427064 431112 445632 453376 465888 479392 494373 494592 502964 508928 519904 524832 543536 548688 567168 574816 594176 599808 621184 627072 629202 640596 648192 659164 680064 689126 699776 719088 731584 747362 754446 756224 763392 777216 779856 799744 815304 836096 838936 854128 862224 891264 906752 931776 958784 988746 1005928 1033689 1039808 1049664 1087072 1097376 1121043 1134336 1149632 1153537 1188352 1199616 1242368 1254144 1258404 1281192 1318328 1360128 1378252 1399552 1438176 1463168 1494724 1508892 1512448 1526784 1559712 1630608 1672192 1677872 1708256 1724448 1782528 1813504 1863552 1917568 1977492 2011856 2067378 2079616 2099328 2174144 2194752 2242086 2268672 2299264 2307074 2376704 2399232 2411941 2484736 2508288 2516808 2562384 2636656 2720256 2756504 2799104 2876352 2926336 2989448 3017784 3119424 3261216 3355744 3416512 3448896 3460611 3565056 3727104 3790193 3835136 3954984 4023712 4134756 4159232 4198656 4348288 4389504 4484172 4537344 4598528 4614148 4823882 4969472 5016576 5033616 5124768 5273312 5440512 5513008 5598208 5752704 5852672 5978896 6035568 6238848 6522432 6711488 6833024 6897792 6921222 7130112 7235823 7454208 7580386 7670272 7909968 8047424 8269512 8318464 8397312 8696576 8779008 8968344 9197056 9228296 9647764 10067232 10249536 10546624 11026016 11370579 11505408 11705344 11957792 12071136 12477696 13044864 13422976 13666048 13795584 13842444 14471646 14908416 15160772 15340544 15819936 16094848 16539024 16636928 16794624 17393152 17558016 17936688 18394112 18456592 19295528 20134464 20499072 21093248 22052032 22741158 23010816 23915584 24142272 24955392 26089728 26531351 26845952 27332096 27591168 27684888 28943292 30321544 31639872 32189696 33078048 34786304 35116032 35873376 36913184 38591056 40268928 40998144 42186496 44104064 45482316 46021632 47831168 48284544 49910784 52179456 53062702 53691904 54664192 55182336 55369776 57886584 60643088 63279744 64379392 66156096 71746752 73826368 77182112 79594053 80537856 81996288 84372992 88208128 90964632 95662336 96569088 104358912 106125404 107383808 110739552 115773168 121286176 126559488 128758784 132312192 143493504 147652736 154364224 159188106 161075712 163992576 168745984 176416256 181929264 191324672 193138176 212250808 221479104 231546336 242572352 253118976 264624384 286987008 295305472 308728448 318376212 322151424 352832512 363858528 382649344 386276352 424501616 442958208 463092672 485144704 506237952 529248768 573974016 590610944 617456896 636752424 727717056 849003232 885916416 926185344 970289408 1058497536 1147948032 1181221888 1234913792 1273504848 1455434112 1698006464 1771832832 1852370688 1940578816 2469827584 2547009696 2910868224 3396012928 3543665664 3704741376 3881157632 5094019392 5821736448 6792025856 7409482752 10188038784 11643472896 13584051712 20376077568 27168103424 40752155136 81504310272
• Sum of all divisors σ(n): 287957680128
• Sum of proper divisors (its aliquot sum) s(n): 206453369856
• 81504310272 is an abundant number, because the sum of its proper divisors (206453369856) is greater than itself. Its abundance is 124949059584

Bases of 81504310272

• Binary: 1001011111010000010010001010000000000₂
• Hexadecimal: 0x12FA091400
• Base-36: 11FXK8AO

Squares and roots of 81504310272

• 81504310272 squared (81504310272²) is 6642952592914444713984
• 81504310272 cubed (81504310272³) is 541429269255085810719142233243648
• The square root of 81504310272 is 285489.5974847419
• The cube root of 81504310272 is 4335.7096613463

Scales and comparisons

• 81,504,310,272 seconds is equal to 2,591 years, 30 weeks, 2 days, 22 hours, 11 minutes, 12 seconds.
• To count from 1 to 81,504,310,272 would take you about five thousand, one hundred eighty-three 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 81504310272 cubic inches would be around 361.3 feet tall.

Recreational maths with 81504310272

• 81504310272 backwards is 27201340518
• 81504310272 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81504310272's digits is 33
• More coming soon!