21387474272768

Names of 21387474272768

• Cardinal: 21387474272768 can be written as Twenty-one trillion, three hundred eighty-seven billion, four hundred seventy-four million, two hundred seventy-two thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1387474272768 × 10¹³

Factors of 21387474272768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 399

Divisors of 21387474272768

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 4 8 16 19 31 32 38 62 64 76 124 128 152 248 256 304 347 361 496 512 589 608 694 722 961 992 1178 1216 1388 1444 1922 1984 2356 2432 2776 2888 3844 3968 4712 4864 5552 5776 6593 7688 7936 9424 9728 10757 11104 11191 11552 13186 15376 15872 18259 18848 21514 22208 22382 23104 26372 30752 36518 37696 43028 44416 44764 46208 52744 61504 73036 75392 86056 88832 89528 92416 105488 120409 123008 125267 146072 150784 172112 177664 179056 184832 204383 210976 240818 246016 250534 292144 301568 333467 344224 346921 358112 408766 421952 481636 492032 501068 584288 666934 688448 693842 716224 817532 843904 963272 1002136 1168576 1333868 1376896 1387684 1432448 1635064 1687808 1926544 2004272 2287771 2337152 2667736 2753792 2775368 2864896 3270128 3375616 3732679 3853088 3883277 4008544 4575542 4674304 5335472 5507584 5550736 5729792 6335873 6540256 7465358 7706176 7766554 8017088 9151084 9348608 10670944 11101472 12671746 13080512 14930716 15412352 15533108 16034176 18302168 21341888 22202944 25343492 26161024 29861432 30824704 31066216 32068352 36604336 42683776 43467649 44405888 50686984 52322048 59722864 61649408 62132432 64136704 70920901 73208672 85367552 86935298 88811776 101373968 104644096 115713049 119445728 120381587 124264864 141841802 146417344 170735104 173870596 177623552 202747936 231426098 238891456 240763174 248529728 283683604 292834688 347741192 405495872 462852196 477782912 481526348 497059456 567367208 585669376 695482384 810991744 925704392 955565824 963052696 994118912 1134734416 1171338752 1347497119 1390964768 1621983488 1851408784 1911131648 1926105392 1988237824 2198547931 2269468832 2694994238 2781929536 3243966976 3702817568 3852210784 4397095862 4538937664 5389988476 5563859072 7405635136 7704421568 8794191724 9077875328 10779976952 11127718144 14811270272 15408843136 17588383448 18155750656 21559953904 22255436288 29622540544 30817686272 35176766896 36311501312 41772410689 43119907808 59245081088 61635372544 70353533792 83544821378 86239815616 140707067584 167089642756 172479631232 281414135168 334179285512 344959262464 562828270336 668358571024 689918524928 1125656540672 1336717142048 2673434284096 5346868568192 10693737136384 21387474272768
• Sum of all divisors σ(n): 46737144316863
• Sum of proper divisors (its aliquot sum) s(n): 25349670044095
• 21387474272768 is an abundant number, because the sum of its proper divisors (25349670044095) is greater than itself. Its abundance is 3962195771327

Bases of 21387474272768

• Binary: 100110111001110101000110011101000001000000000₂
• Hexadecimal: 0x1373A8CE8200
• Base-36: 7KX9PZ20W

Squares and roots of 21387474272768

• 21387474272768 squared (21387474272768²) is 457424055768313090466381824
• 21387474272768 cubed (21387474272768³) is 9783145224489991090020614195206613368832
• The square root of 21387474272768 is 4624659.3682960045
• The cube root of 21387474272768 is 27757.8931734411

Scales and comparisons

• 21,387,474,272,768 seconds is equal to 680,055 years, 27 weeks, 2 days, 11 hours, 46 minutes, 8 seconds.
• To count from 1 to 21,387,474,272,768 would take you about one million, seven hundred thousand, one hundred thirty-eight 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 21387474272768 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21387474272768

• 21387474272768 backwards is 86727247478312
• The number of decimal digits it has is: 14
• The sum of 21387474272768's digits is 68
• More coming soon!