21720492612

Names of 21720492612

• Cardinal: 21720492612 can be written as Twenty-one billion, seven hundred twenty million, four hundred ninety-two thousand, six hundred twelve.

Scientific notation

• Scientific notation: 2.1720492612 × 10¹⁰

Factors of 21720492612

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 643

Divisors of 21720492612

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 17 18 21 23 26 28 31 34 36 39 42 46 51 52 62 63 68 69 78 84 91 92 93 102 117 119 124 126 138 153 156 161 182 186 204 207 217 221 234 238 252 273 276 279 299 306 322 357 364 372 391 403 414 434 442 468 476 483 527 546 547 558 598 612 644 651 663 713 714 782 806 819 828 868 884 897 966 1054 1071 1092 1094 1116 1173 1196 1209 1302 1326 1426 1428 1449 1547 1564 1581 1612 1638 1641 1794 1932 1953 1989 2093 2108 2139 2142 2188 2346 2418 2604 2652 2691 2737 2821 2852 2898 3094 3162 3276 3282 3519 3588 3627 3689 3829 3906 3978 4186 4278 4284 4641 4692 4743 4836 4923 4991 5083 5382 5474 5642 5796 6188 6279 6324 6417 6564 6851 7038 7111 7254 7378 7658 7812 7956 8211 8372 8463 8556 9269 9282 9299 9486 9846 9982 10166 10764 10948 11067 11284 11487 12121 12558 12581 12834 13702 13923 14076 14222 14508 14756 14973 15249 15316 16422 16926 16957 18538 18564 18598 18837 18972 19692 19964 20332 20553 21333 22134 22974 24242 24633 25116 25162 25389 25668 27404 27807 27846 27897 28444 29946 30498 32844 33201 33852 33914 34461 35581 36363 37076 37196 37674 37743 41106 42666 44268 44919 45747 45948 47957 48484 49266 49777 50324 50778 50871 55614 55692 55794 59892 60996 61659 63999 64883 65093 66402 67828 68922 71162 72726 75348 75486 82212 83421 83691 84847 85332 88067 89838 91494 95914 98532 99554 101556 101742 106743 109089 111228 111588 113229 118699 120887 123318 127998 129766 130186 132804 137844 142324 143871 145452 149331 150972 152613 157573 163553 166842 167382 169694 176134 179676 182988 191828 194649 195279 199108 203484 213486 213877 218178 220441 226458 237398 241774 246636 254541 255996 259532 260372 264201 287742 288269 298662 305226 315146 320229 327106 333684 334764 339388 352268 356097 362661 389298 390011 390558 426972 427754 431613 436356 440882 447993 452916 472719 474796 483548 490659 509082 528402 575484 576538 583947 585837 597324 610452 630292 640458 641631 654212 661323 712194 725322 763623 778596 780022 781116 792603 846209 855508 863226 864807 881764 895986 945438 981318 1018164 1056804 1068291 1087983 1103011 1144871 1153076 1167894 1170033 1171674 1280916 1283262 1322646 1418157 1424388 1450644 1471977 1497139 1527246 1543087 1560044 1585206 1692418 1726452 1729614 1791972 1890876 1924893 1962636 1983969 2017883 2136582 2175966 2206022 2289742 2335788 2340066 2343348 2538627 2566524 2594421 2645292 2730077 2780401 2836314 2943954 2994278 3054492 3086174 3170412 3309033 3384836 3434613 3459228 3510099 3747497 3849786 3967938 4035766 4273164 4351932 4412044 4491417 4579484 4629261 4680132 5070143 5077254 5188842 5460154 5560802 5672628 5887908 5988556 6053649 6172348 6618066 6630187 6869226 7020198 7494994 7615881 7699572 7935876 8071532 8190231 8341203 8982834 9258522 9927099 10140286 10154508 10303839 10377684 10920308 11121604 11242491 12107298 13236132 13260374 13474251 13738452 13887783 14040396 14989988 15210429 15231762 16380462 16682406 17965668 18160947 18517044 19462807 19854198 19890561 20280572 20607678 22484982 24214596 24570693 25023609 26232479 26520748 26948502 27775566 30420858 30463524 32760924 33364812 33727473 35491001 36321894 38925614 39708396 39781122 41215356 44969964 45631287 46411309 49141386 50047218 52464958 53897004 55551132 58388421 59671683 60841716 67454946 70982002 72643788 77851228 78697437 79562244 86192431 91262574 92822618 98282772 100094436 104929916 106473003 116776842 119343366 134909892 139233927 141964004 157394874 172384862 175165263 182525148 185645236 212946006 233553684 236092311 238686732 258577293 278467854 314789748 319419009 344769724 350330526 417701781 425892012 472184622 517154586 556935708 603347017 638838018 700661052 775731879 835403562 944369244 1034309172 1206694034 1277676036 1551463758 1670807124 1810041051 2413388068 3102927516 3620082102 5430123153 7240164204 10860246306 21720492612
• Sum of all divisors σ(n): 77210025984
• Sum of proper divisors (its aliquot sum) s(n): 55489533372
• 21720492612 is an abundant number, because the sum of its proper divisors (55489533372) is greater than itself. Its abundance is 33769040760

Bases of 21720492612

• Binary: 10100001110101001000110101001000100₂
• Hexadecimal: 0x50EA46A44
• Base-36: 9Z7TJD0

Squares and roots of 21720492612

• 21720492612 squared (21720492612²) is 471779799307946582544
• 21720492612 cubed (21720492612³) is 10247289645359096459037600164928
• The square root of 21720492612 is 147378.7386701351
• The cube root of 21720492612 is 2790.1221929757

Scales and comparisons

• 21,720,492,612 seconds is equal to 690 years, 33 weeks, 3 days, 14 hours, 10 minutes, 12 seconds.
• To count from 1 to 21,720,492,612 would take you about one thousand, three hundred eighty-one 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 21720492612 cubic inches would be around 232.5 feet tall.

Recreational maths with 21720492612

• 21720492612 backwards is 21629402712
• 21720492612 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21720492612's digits is 36
• More coming soon!