81333752832

Names of 81333752832

• Cardinal: 81333752832 can be written as Eighty-one billion, three hundred thirty-three million, seven hundred fifty-two thousand, eight hundred thirty-two.

Scientific notation

• Scientific notation: 8.1333752832 × 10¹⁰

Factors of 81333752832

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 85

Divisors of 81333752832

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 37 43 48 54 64 72 74 86 96 108 111 128 129 144 148 172 192 216 222 256 258 288 296 333 344 384 387 432 444 512 516 576 592 666 688 768 774 864 888 999 1024 1032 1152 1161 1184 1332 1376 1536 1548 1591 1728 1776 1849 1998 2064 2304 2322 2368 2664 2752 3072 3096 3182 3456 3552 3698 3996 4128 4608 4644 4736 4773 5328 5504 5547 6192 6364 6912 7104 7396 7992 8256 9216 9288 9472 9546 10656 11008 11094 12384 12728 13824 14208 14319 14792 15984 16512 16641 18576 18944 19092 21312 22016 22188 24768 25456 27648 28416 28638 29584 31968 33024 33282 37152 37888 38184 42624 42957 44032 44376 49536 49923 50912 56832 57276 59168 63936 66048 66564 68413 74304 76368 79507 85248 85914 88752 99072 99846 101824 113664 114552 118336 127872 132096 133128 136826 148608 152736 159014 170496 171828 177504 198144 199692 203648 205239 229104 236672 238521 255744 266256 273652 297216 305472 318028 340992 343656 355008 396288 399384 407296 410478 458208 473344 477042 511488 532512 547304 594432 610944 615717 636056 687312 710016 715563 798768 814592 820956 916416 946688 954084 1022976 1065024 1094608 1188864 1221888 1231434 1272112 1374624 1420032 1431126 1597536 1629184 1641912 1832832 1847151 1893376 1908168 2130048 2146689 2189216 2443776 2462868 2544224 2749248 2840064 2862252 2941759 3195072 3283824 3665664 3694302 3816336 4260096 4293378 4378432 4887552 4925736 5088448 5498496 5680128 5724504 5883518 6390144 6567648 7331328 7388604 7632672 8520192 8586756 8756864 8825277 9851472 10176896 10996992 11449008 11767036 12780288 13135296 14662656 14777208 15265344 17040384 17173512 17513728 17650554 19702944 20353792 21993984 22898016 23534072 25560576 26270592 26475831 29554416 30530688 34347024 35027456 35301108 39405888 40707584 43987968 45796032 47068144 51121152 52541184 52951662 59108832 61061376 68694048 70054912 70602216 78811776 79427493 81415168 91592064 94136288 105082368 105903324 118217664 122122752 137388096 141204432 157623552 158854986 183184128 188272576 210164736 211806648 236435328 244245504 274776192 282408864 315247104 317709972 366368256 376545152 423613296 472870656 549552384 564817728 630494208 635419944 732736512 753090304 847226592 945741312 1099104768 1129635456 1270839888 1506180608 1694453184 1891482624 2198209536 2259270912 2541679776 3012361216 3388906368 4518541824 5083359552 6777812736 9037083648 10166719104 13555625472 20333438208 27111250944 40666876416 81333752832
• Sum of all divisors σ(n): 253271216000
• Sum of proper divisors (its aliquot sum) s(n): 171937463168
• 81333752832 is an abundant number, because the sum of its proper divisors (171937463168) is greater than itself. Its abundance is 90603710336

Bases of 81333752832

• Binary: 1001011101111110111101001010000000000₂
• Hexadecimal: 0x12EFDE9400
• Base-36: 11D40LC0

Squares and roots of 81333752832

• 81333752832 squared (81333752832²) is 6615179349736868020224
• 81333752832 cubed (81333752832³) is 538037362170848907794703993274368
• The square root of 81333752832 is 285190.7306207549
• The cube root of 81333752832 is 4332.6832203303

Scales and comparisons

• 81,333,752,832 seconds is equal to 2,586 years, 8 weeks, 2 days, 21 hours, 7 minutes, 12 seconds.
• To count from 1 to 81,333,752,832 would take you about five thousand, one hundred seventy-two 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 81333752832 cubic inches would be around 361.1 feet tall.

Recreational maths with 81333752832

• 81333752832 backwards is 23825733318
• The number of decimal digits it has is: 11
• The sum of 81333752832's digits is 45
• More coming soon!