81040827504

Names of 81040827504

• Cardinal: 81040827504 can be written as Eighty-one billion, forty million, eight hundred twenty-seven thousand, five hundred four.

Scientific notation

• Scientific notation: 8.1040827504 × 10¹⁰

Factors of 81040827504

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1342

Divisors of 81040827504

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 52 56 78 84 91 104 112 127 139 156 168 182 208 254 273 278 312 336 364 381 417 508 546 556 624 728 762 834 889 973 1016 1051 1092 1112 1456 1524 1651 1668 1778 1807 1946 2032 2102 2184 2224 2667 2919 3048 3153 3302 3336 3556 3614 3892 4204 4368 4953 5334 5421 5838 6096 6306 6604 6672 7112 7228 7357 7784 8408 9906 10668 10842 11557 11676 12612 12649 13208 13663 14224 14456 14714 15568 16816 17653 19812 21336 21684 22071 23114 23352 25224 25298 26416 27326 28912 29428 34671 35306 37947 39624 40989 42672 43368 44142 46228 46704 50448 50596 52959 54652 58856 69342 70612 75894 79248 81978 86736 88284 92456 95641 101192 105918 109304 117712 123571 133477 138684 141224 146089 151788 163956 176568 184912 191282 202384 211836 218608 229489 247142 266954 277368 282448 286923 292178 303576 327912 353136 370713 382564 400431 423672 438267 458978 494284 533908 554736 573846 584356 607152 655824 688467 741426 765128 800862 847344 876534 917956 934339 988568 1022623 1067816 1147692 1168712 1376934 1482852 1530256 1601724 1606423 1735201 1753068 1835912 1868678 1899157 1977136 2045246 2135632 2295384 2337424 2753868 2803017 2965704 3067869 3203448 3212846 3470402 3506136 3671824 3737356 3798314 4090492 4590768 4819269 5205603 5507736 5606034 5697471 5931408 6135738 6406896 6425692 6940804 7012272 7474712 7596628 8180984 9638538 10411206 11015472 11212068 11394942 12146407 12271476 12851384 13294099 13881608 14949424 15193256 16361968 18553303 19277076 20822412 22424136 22789884 24292814 24542952 25702768 26588198 27763216 30386512 36439221 37106606 38554152 39882297 41644824 44848272 45579768 48585628 49085904 53176396 55659909 72878442 74213212 77108304 79764594 83289648 91159536 97171256 106352792 111319818 129873121 145756884 148426424 159529188 194342512 212705584 222639636 241192939 259746242 291513768 296852848 319058376 389619363 445279272 482385878 519492484 583027536 638116752 723578817 779238726 890558544 964771756 1038984968 1447157634 1558477452 1688350573 1929543512 2077969936 2894315268 3116954904 3376701146 3859087024 5065051719 5788630536 6233909808 6753402292 10130103438 11577261072 13506804584 20260206876 27013609168 40520413752 81040827504
• Sum of all divisors σ(n): 261814353920
• Sum of proper divisors (its aliquot sum) s(n): 180773526416
• 81040827504 is an abundant number, because the sum of its proper divisors (180773526416) is greater than itself. Its abundance is 99732698912

Bases of 81040827504

• Binary: 1001011011110011010001110010001110000₂
• Hexadecimal: 0x12DE68E470
• Base-36: 1189M6PC

Squares and roots of 81040827504

• 81040827504 squared (81040827504²) is 6567615722533082870016
• 81040827504 cubed (81040827504³) is 532245012882361894802303909720064
• The square root of 81040827504 is 284676.7069923357
• The cube root of 81040827504 is 4327.4755449913

Scales and comparisons

• 81,040,827,504 seconds is equal to 2,576 years, 44 weeks, 12 hours, 58 minutes, 24 seconds.
• To count from 1 to 81,040,827,504 would take you about five thousand, one hundred fifty-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 81040827504 cubic inches would be around 360.6 feet tall.

Recreational maths with 81040827504

• 81040827504 backwards is 40572804018
• 81040827504 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81040827504's digits is 39
• More coming soon!