21397930929648

Names of 21397930929648

• Cardinal: 21397930929648 can be written as Twenty-one trillion, three hundred ninety-seven billion, nine hundred thirty million, nine hundred twenty-nine thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1397930929648 × 10¹³

Factors of 21397930929648

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 705117

Divisors of 21397930929648

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 36 39 42 48 49 52 56 63 72 78 84 91 98 104 112 117 126 144 147 156 168 182 196 208 234 252 273 294 312 331 336 364 392 441 468 504 546 588 624 637 662 728 784 819 882 936 993 1008 1092 1176 1274 1324 1456 1638 1764 1872 1911 1986 2184 2317 2352 2548 2648 2979 3276 3528 3822 3972 4303 4368 4634 5096 5296 5733 5958 6552 6951 7056 7644 7944 8606 9268 10192 11466 11916 12909 13104 13902 15288 15888 16219 17212 18536 20853 22932 23832 25818 27804 30121 30576 32438 34424 37072 38727 41706 45864 47664 48657 51636 55608 60242 64876 68848 77454 83412 90363 91728 97314 103272 111216 120484 129752 145971 154908 166824 180726 194628 206544 210847 240968 259504 271089 291942 309816 333648 361452 389256 421694 481936 542178 583884 619632 632541 704761 722904 778512 843388 1084356 1167768 1265082 1409522 1445808 1686776 1897623 2114283 2168712 2335536 2530164 2819044 3373552 3795246 4228566 4337424 4933327 5060328 5638088 6342849 7590492 8457132 9161893 9866654 10120656 11276176 12685698 14799981 15180984 16914264 18323786 19733308 25371396 27485679 29599962 30361968 33828528 34533289 36647572 39466616 44399943 50742792 54971358 59199924 64133251 69066578 73295144 78933232 82457037 88799886 101485584 103599867 109942716 118399848 128266502 138133156 146590288 164914074 177599772 192399753 207199734 219885432 233275891 236799696 256533004 276266312 310799601 329828148 355199544 384799506 414399468 439770864 448932757 466551782 513066008 552532624 577199259 621599202 659656296 699827673 710399088 769599012 828798936 897865514 933103564 1026132016 1154398518 1243198404 1319312592 1346798271 1399655346 1539198024 1632931237 1657597872 1795731028 1866207128 2099483019 2308797036 2486396808 2693596542 2799310692 3032586583 3078396048 3265862474 3591462056 3732414256 4040394813 4198966038 4617594072 4898793711 4972793616 5387193084 5598621384 6065173166 6531724948 7182924112 8080789626 8397932076 9097759749 9235188144 9797587422 10774386168 11197242768 11430518659 12130346332 13063449896 14696381133 16161579252 16795864152 18195519498 19595174844 21228106081 21548772336 22861037318 24260692664 26126899792 27293279247 29392762266 32323158504 33591728304 34291555977 36391038996 39190349688 42456212162 45722074636 48521385328 54586558494 58785524532 63684318243 64646317008 68583111954 72782077992 78380699376 84912424324 91444149272 102874667931 109173116988 117571049064 127368636486 137166223908 145564155984 148596742567 169824848648 182888298544 191052954729 205749335862 218346233976 235142098128 254737272972 274332447816 297193485134 339649697296 382105909458 411498671724 436692467952 445790227701 509474545944 548664895632 594386970268 764211818916 822997343448 891580455402 1018949091888 1188773940536 1337370683103 1528423637832 1645994686896 1783160910804 2377547881072 2674741366206 3056847275664 3566321821608 5349482732412 7132643643216 10698965464824 21397930929648
• Sum of all divisors σ(n): 75246880568496
• Sum of proper divisors (its aliquot sum) s(n): 53848949638848
• 21397930929648 is an abundant number, because the sum of its proper divisors (53848949638848) is greater than itself. Its abundance is 32451018709200

Bases of 21397930929648

• Binary: 100110111011000011000000100100110110111110000₂
• Hexadecimal: 0x137618126DF0
• Base-36: 7L22NLI40

Squares and roots of 21397930929648

• 21397930929648 squared (21397930929648²) is 457871448069986521525403904
• 21397930929648 cubed (21397930929648³) is 9797501620459482643910915722567408545792
• The square root of 21397930929648 is 4625789.7628024559
• The cube root of 21397930929648 is 27762.4161864671

Scales and comparisons

• 21,397,930,929,648 seconds is equal to 680,388 years, 5 days, 14 hours, 40 minutes, 48 seconds.
• To count from 1 to 21,397,930,929,648 would take you about one million, seven hundred thousand, nine hundred seventy 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 21397930929648 cubic inches would be around 2313.5 feet tall.

Recreational maths with 21397930929648

• 21397930929648 backwards is 84692903979312
• 21397930929648 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21397930929648's digits is 72
• More coming soon!