81376679904

Names of 81376679904

• Cardinal: 81376679904 can be written as Eighty-one billion, three hundred seventy-six million, six hundred seventy-nine thousand, nine hundred four.

Scientific notation

• Scientific notation: 8.1376679904 × 10¹⁰

Factors of 81376679904

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1869

Divisors of 81376679904

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 43 48 52 67 78 86 96 104 129 134 156 169 172 201 208 258 268 312 338 344 402 416 507 516 536 559 624 676 688 804 871 1014 1032 1072 1118 1248 1352 1376 1608 1677 1741 1742 2028 2064 2144 2236 2613 2704 2881 3216 3354 3482 3484 4056 4128 4472 5223 5226 5408 5762 6432 6708 6964 6968 7267 8112 8643 8944 10446 10452 11323 11524 13416 13928 13936 14534 16224 17286 17888 20892 20904 21801 22633 22646 23048 26832 27856 27872 29068 33969 34572 37453 41784 41808 43602 45266 45292 46096 53664 55712 58136 67899 67938 69144 74863 74906 83568 83616 87204 90532 90584 92192 112359 116272 116647 135798 135876 138288 149726 149812 167136 174408 181064 181168 224589 224718 232544 233294 271596 271752 276576 294229 299452 299624 348816 349941 362128 362336 449178 449436 466588 486889 543192 543504 588458 598904 599248 697632 699882 724256 882687 898356 898872 933176 973219 973778 1086384 1087008 1176916 1197808 1198496 1399764 1460667 1516411 1765374 1796712 1797744 1866352 1946438 1947556 2172768 2353832 2395616 2799528 2919657 2921334 3032822 3530748 3593424 3595488 3732704 3892876 3895112 4549233 4707664 5015821 5599056 5839314 5842668 6065644 7061496 7186848 7785752 7790224 9098466 9415328 10031642 11198112 11678628 11685336 12131288 12651847 14122992 15047463 15571504 15580448 18196932 19713343 20063284 23357256 23370672 24262576 25303694 28245984 30094926 31143008 36393864 37955541 39426686 40126568 46714512 46741344 48525152 50607388 59140029 60189852 65205673 72787728 75911082 78853372 80253136 93429024 101214776 118280058 120379704 130411346 145575456 151822164 157706744 160506272 195617019 202429552 236560116 240759408 260822692 303644328 315413488 391234038 404859104 473120232 481518816 521645384 607288656 630826976 782468076 847673749 946240464 1043290768 1214577312 1564936152 1695347498 1892480928 2086581536 2543021247 3129872304 3390694996 5086042494 6259744608 6781389992 10172084988 13562779984 20344169976 27125559968 40688339952 81376679904
• Sum of all divisors σ(n): 240359543424
• Sum of proper divisors (its aliquot sum) s(n): 158982863520
• 81376679904 is an abundant number, because the sum of its proper divisors (158982863520) is greater than itself. Its abundance is 77606183616

Bases of 81376679904

• Binary: 1001011110010011011011001011111100000₂
• Hexadecimal: 0x12F26D97E0
• Base-36: 11DTKO2O

Squares and roots of 81376679904

• 81376679904 squared (81376679904²) is 6622164032198077449216
• 81376679904 cubed (81376679904³) is 538889722719964898109051247755264
• The square root of 81376679904 is 285265.9809791557
• The cube root of 81376679904 is 4333.4453339941

Scales and comparisons

• 81,376,679,904 seconds is equal to 2,587 years, 27 weeks, 2 days, 17 hours, 18 minutes, 24 seconds.
• To count from 1 to 81,376,679,904 would take you about five thousand, one hundred seventy-five 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 81376679904 cubic inches would be around 361.1 feet tall.

Recreational maths with 81376679904

• 81376679904 backwards is 40997667318
• The number of decimal digits it has is: 11
• The sum of 81376679904's digits is 60
• More coming soon!