81472806072

Names of 81472806072

• Cardinal: 81472806072 can be written as Eighty-one billion, four hundred seventy-two million, eight hundred six thousand and seventy-two.

Scientific notation

• Scientific notation: 8.1472806072 × 10¹⁰

Factors of 81472806072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4932

Divisors of 81472806072

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 49 54 56 63 72 81 84 98 108 126 147 162 168 189 196 216 252 294 324 378 392 441 504 567 588 593 648 756 882 1134 1176 1186 1323 1512 1764 1779 2268 2372 2646 3528 3558 3969 4151 4327 4536 4744 5292 5337 7116 7938 8302 8654 10584 10674 12453 12981 14232 15876 16011 16604 17308 21348 24906 25962 29057 30289 31752 32022 33208 34616 37359 38943 42696 48033 49812 51924 58114 60578 64044 74718 77886 87171 90867 96066 99624 103848 112077 116228 116829 121156 128088 149436 155772 174342 181734 192132 212023 224154 232456 233658 242312 261513 272601 298872 311544 336231 348684 350487 363468 384264 424046 448308 467316 523026 545202 636069 672462 697368 700974 726936 784539 817803 848092 896616 934632 1046052 1090404 1272138 1344924 1401948 1569078 1635606 1696184 1908207 2092104 2180808 2353617 2453409 2544276 2565911 2689848 2803896 3138156 3271212 3816414 4707234 4906818 5088552 5131822 5724621 6276312 6542424 7632828 7697733 9414468 9813636 10263644 11449242 15265656 15395466 17173863 17961377 18828936 19627272 20527288 22898484 23093199 30790932 34347726 35922754 45796968 46186398 53884131 61581864 68695452 69279597 71845508 92372796 107768262 125729639 137390904 138559194 143691016 161652393 184745592 207838791 215536524 251459278 277118388 323304786 377188917 415677582 431073048 484957179 502918556 554236776 646609572 754377834 831355164 969914358 1005837112 1131566751 1293219144 1454871537 1508755668 1662710328 1939828716 2263133502 2909743074 3017511336 3394700253 3879657432 4526267004 5819486148 6789400506 9052534008 10184100759 11638972296 13578801012 20368201518 27157602024 40736403036 81472806072
• Sum of all divisors σ(n): 265965424560
• Sum of proper divisors (its aliquot sum) s(n): 184492618488
• 81472806072 is an abundant number, because the sum of its proper divisors (184492618488) is greater than itself. Its abundance is 103019812416

Bases of 81472806072

• Binary: 1001011111000001010000101110010111000₂
• Hexadecimal: 0x12F8285CB8
• Base-36: 11FESZI0

Squares and roots of 81472806072

• 81472806072 squared (81472806072²) is 6637818129245720069184
• 81472806072 cubed (81472806072³) is 540801669185242382832626455285248
• The square root of 81472806072 is 285434.4164111959
• The cube root of 81472806072 is 4335.1509560583

Scales and comparisons

• 81,472,806,072 seconds is equal to 2,590 years, 30 weeks, 2 days, 7 hours, 1 minute, 12 seconds.
• To count from 1 to 81,472,806,072 would take you about five thousand, one 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 81472806072 cubic inches would be around 361.3 feet tall.

Recreational maths with 81472806072

• 81472806072 backwards is 27060827418
• The number of decimal digits it has is: 11
• The sum of 81472806072's digits is 45
• More coming soon!