81964127232

Names of 81964127232

• Cardinal: 81964127232 can be written as Eighty-one billion, nine hundred sixty-four million, one hundred twenty-seven thousand, two hundred thirty-two.

Scientific notation

• Scientific notation: 8.1964127232 × 10¹⁰

Factors of 81964127232

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 974

Divisors of 81964127232

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 96 104 108 117 128 144 156 192 208 216 234 256 288 312 351 384 416 432 457 468 499 512 576 624 702 768 832 864 914 936 998 1024 1152 1248 1371 1404 1497 1536 1664 1728 1828 1872 1996 2304 2496 2742 2808 2994 3072 3328 3456 3656 3744 3992 4113 4491 4608 4992 5484 5616 5941 5988 6487 6656 6912 7312 7488 7984 8226 8982 9216 9984 10968 11232 11882 11976 12339 12974 13312 13473 13824 14624 14976 15968 16452 17823 17964 19461 19968 21936 22464 23764 23952 24678 25948 26946 27648 29248 29952 31936 32904 35646 35928 38922 39936 43872 44928 47528 47904 49356 51896 53469 53892 58383 58496 59904 63872 65808 71292 71856 77844 87744 89856 95056 95808 98712 103792 106938 107784 116766 116992 119808 127744 131616 142584 143712 155688 160407 175149 175488 179712 190112 191616 197424 207584 213876 215568 228043 233532 233984 255488 263232 285168 287424 311376 320814 350298 350976 359424 380224 383232 394848 415168 427752 431136 456086 467064 467968 510976 526464 570336 574848 622752 641628 684129 700596 701952 760448 766464 789696 830336 855504 862272 912172 934128 1052928 1140672 1149696 1245504 1283256 1368258 1401192 1403904 1520896 1532928 1579392 1660672 1711008 1724544 1824344 1868256 2052387 2105856 2281344 2299392 2491008 2566512 2736516 2802384 2964559 3041792 3158784 3321344 3422016 3449088 3648688 3736512 4104774 4211712 4562688 4598784 4982016 5133024 5473032 5604768 5929118 6083584 6157161 6317568 6642688 6844032 6898176 7297376 7473024 8209548 8893677 9125376 9964032 10266048 10946064 11209536 11858236 12314322 12635136 13688064 13796352 14594752 14946048 16419096 17787354 18250752 19928064 20532096 21892128 22419072 23716472 24628644 26681031 27376128 29189504 29892096 32838192 35574708 41064192 43784256 44838144 47432944 49257288 53362062 54752256 58379008 59784192 65676384 71149416 80043093 82128384 87568512 89676288 94865888 98514576 106724124 116758016 131352768 142298832 160086186 164256768 175137024 179352576 189731776 197029152 213448248 233516032 262705536 284597664 320172372 350274048 379463552 394058304 426896496 525411072 569195328 640344744 700548096 758927104 788116608 853792992 1050822144 1138390656 1280689488 1517854208 1576233216 1707585984 2101644288 2276781312 2561378976 3035708416 3152466432 3415171968 4553562624 5122757952 6304932864 6830343936 9107125248 10245515904 13660687872 20491031808 27321375744 40982063616 81964127232
• Sum of all divisors σ(n): 262507280000
• Sum of proper divisors (its aliquot sum) s(n): 180543152768
• 81964127232 is an abundant number, because the sum of its proper divisors (180543152768) is greater than itself. Its abundance is 98579025536

Bases of 81964127232

• Binary: 1001100010101011100010101010000000000₂
• Hexadecimal: 0x1315715400
• Base-36: 11NJBPC0

Squares and roots of 81964127232

• 81964127232 squared (81964127232²) is 6718118152903483981824
• 81964127232 cubed (81964127232³) is 550644691044189991302296311431168
• The square root of 81964127232 is 286293.7778436689
• The cube root of 81964127232 is 4343.8478625635

Scales and comparisons

• 81,964,127,232 seconds is equal to 2,606 years, 10 weeks, 4 days, 21 hours, 7 minutes, 12 seconds.
• To count from 1 to 81,964,127,232 would take you about five thousand, two hundred twelve 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 81964127232 cubic inches would be around 362 feet tall.

Recreational maths with 81964127232

• 81964127232 backwards is 23272146918
• The number of decimal digits it has is: 11
• The sum of 81964127232's digits is 45
• More coming soon!