21927984921728

Names of 21927984921728

• Cardinal: 21927984921728 can be written as Twenty-one trillion, nine hundred twenty-seven billion, nine hundred eighty-four million, nine hundred twenty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1927984921728 × 10¹³

Factors of 21927984921728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 367

Divisors of 21927984921728

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 8 16 17 32 34 64 68 97 128 136 194 251 272 289 388 502 544 578 776 1004 1088 1156 1552 1649 2008 2176 2312 3104 3298 4016 4267 4624 6208 6596 8032 8534 9248 9409 12416 13192 16064 17068 18496 18818 24347 26384 28033 32128 34136 36992 37636 48694 52768 56066 63001 68272 72539 75272 97388 105536 112132 126002 136544 145078 150544 159953 194776 211072 224264 252004 273088 290156 301088 319906 389552 413899 448528 504008 546176 580312 602176 639812 779104 827798 897056 1008016 1071017 1160624 1204352 1279624 1558208 1655596 1794112 2016032 2142034 2321248 2361659 2559248 2719201 3116416 3311192 3588224 4032064 4284068 4642496 4723318 5118496 5438402 6111097 6622384 7036283 8064128 8568136 9284992 9446636 10236992 10876804 12222194 13244768 14072566 17136272 18207289 18893272 20473984 21753608 24444388 26489536 28145132 34272544 36414578 37786544 40148203 43507216 48888776 52979072 56290264 68545088 72829156 75573088 80296406 87014432 97777552 103888649 112580528 137090176 145658312 151146176 160592812 174028864 195555104 207777298 225161056 291316624 302292352 321185624 348057728 391110208 415554596 450322112 582633248 592776409 642371248 682519451 782220416 831109192 900644224 1165266496 1185552818 1284742496 1365038902 1662218384 1766107033 2330532992 2371105636 2569484992 2730077804 3324436768 3532214066 4742211272 5138969984 5460155608 6648873536 7064428132 9484422544 10077198953 10920311216 13297747072 14128856264 18968845088 20154397906 21840622432 28257712528 37937690176 40308795812 43681244864 56515425056 75875380352 80617591624 87362489728 113030850112 161235183248 171312382201 226061700224 322470366496 342624764402 644940732992 685249528804 1289881465984 1370499057608 2740998115216 5481996230432 10963992460864 21927984921728
• Sum of all divisors σ(n): 47076392825235
• Sum of proper divisors (its aliquot sum) s(n): 25148407903507
• 21927984921728 is an abundant number, because the sum of its proper divisors (25148407903507) is greater than itself. Its abundance is 3220422981779

Bases of 21927984921728

• Binary: 100111111000110000001110000000111110010000000₂
• Hexadecimal: 0x13F181C07C80
• Base-36: 7RTKS23Y8

Squares and roots of 21927984921728

• 21927984921728 squared (21927984921728²) is 480836522727530522286505984
• 21927984921728 cubed (21927984921728³) is 10543776020185412072811399879152843620352
• The square root of 21927984921728 is 4682732.6340212933
• The cube root of 21927984921728 is 27989.7857819101

Scales and comparisons

• 21,927,984,921,728 seconds is equal to 697,242 years, 4 weeks, 5 days, 18 hours, 42 minutes, 8 seconds.
• To count from 1 to 21,927,984,921,728 would take you about one million, seven hundred forty-three thousand, one hundred 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 21927984921728 cubic inches would be around 2332.5 feet tall.

Recreational maths with 21927984921728

• 21927984921728 backwards is 82712948972912
• The number of decimal digits it has is: 14
• The sum of 21927984921728's digits is 71
• More coming soon!