21729810375

Names of 21729810375

• Cardinal: 21729810375 can be written as Twenty-one billion, seven hundred twenty-nine million, eight hundred ten thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 2.1729810375 × 10¹⁰

Factors of 21729810375

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 267

Divisors of 21729810375

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 7 9 13 15 21 25 31 35 39 41 45 63 65 75 91 93 105 117 123 125 155 167 175 195 205 217 225 273 279 287 315 325 369 375 403 455 465 501 525 533 585 615 651 775 819 835 861 875 975 1025 1085 1125 1169 1209 1271 1365 1395 1435 1503 1575 1599 1625 1845 1953 2015 2171 2275 2325 2505 2583 2625 2665 2821 2925 3075 3255 3507 3627 3731 3813 3875 4095 4175 4305 4797 4875 5125 5177 5425 5845 6045 6355 6513 6825 6847 6975 7175 7515 7875 7995 8463 8897 9225 9765 10075 10521 10855 11193 11375 11439 11625 12525 12915 13325 14105 14625 15197 15375 15531 16275 16523 17535 18135 18655 19065 19539 20475 20541 20875 21525 23985 25389 25885 26691 27125 29225 30225 31775 32565 33579 34125 34235 34875 35875 36239 37575 39975 42315 44485 45591 46125 46593 47929 48825 49569 50375 52605 54275 55965 57195 61623 62625 64575 66625 67301 70525 75985 77655 80073 81375 82615 87675 89011 90675 93275 95325 97695 102375 102705 107625 108717 115661 119925 126945 129425 133455 136773 143787 146125 148707 151125 158875 162825 167895 171175 181195 187875 199875 201903 211575 212257 222425 227955 232965 239645 244125 247845 263025 267033 271375 279825 285975 308115 322875 326151 336505 346983 352625 379925 388275 400365 413075 431361 438375 445055 453375 466375 471107 476625 488475 513525 543585 578305 599625 605709 623077 634725 636771 647125 667275 683865 718935 743535 801099 814125 839475 855875 905975 1009515 1040949 1057875 1061285 1112125 1139775 1164825 1198225 1239225 1315125 1335165 1399125 1413321 1429875 1485799 1540575 1630755 1682525 1734915 1869231 1899625 1910313 1941375 2001825 2065375 2156805 2225275 2355535 2442375 2567625 2717925 2759341 2891525 3028545 3115385 3173625 3183855 3336375 3419325 3594675 3717675 4005495 4197375 4239963 4457397 4529875 5047575 5204745 5306425 5607693 5698875 5824125 5991125 6196125 6675825 7066605 7428995 7702875 8153775 8278023 8412625 8674575 9346155 9551565 10009125 10784025 11126375 11777675 13372191 13589625 13796705 14457625 15142725 15576925 15919275 17096625 17973375 18588375 19315387 20027475 21199815 22286985 24834069 25237875 26023725 26532125 28038465 33379125 35333025 37144975 40768875 41390115 43372875 46730775 47757825 53920125 57946161 58888375 66860955 68983525 75713625 77884625 79596375 96576935 100137375 105999075 111434925 124170345 130118625 140192325 173838483 176665125 185724875 206950575 233653875 238789125 289730805 334304775 344917625 482884675 529995375 557174625 620851725 700961625 869192415 1034752875 1448654025 1671523875 2414423375 3104258625 4345962075 7243270125 21729810375
• Sum of all divisors σ(n): 51285491712
• Sum of proper divisors (its aliquot sum) s(n): 29555681337
• 21729810375 is an abundant number, because the sum of its proper divisors (29555681337) is greater than itself. Its abundance is 7825870962

Bases of 21729810375

• Binary: 10100001111001100101001011111000111₂
• Hexadecimal: 0x50F3297C7
• Base-36: 9ZDD8ZR

Squares and roots of 21729810375

• 21729810375 squared (21729810375²) is 472184658933457640625
• 21729810375 cubed (21729810375³) is 10260483100608084273876146484375
• The square root of 21729810375 is 147410.3469061789
• The cube root of 21729810375 is 2790.5211093529

Scales and comparisons

• 21,729,810,375 seconds is equal to 690 years, 48 weeks, 6 days, 10 hours, 26 minutes, 15 seconds.
• To count from 1 to 21,729,810,375 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 21729810375 cubic inches would be around 232.5 feet tall.

Recreational maths with 21729810375

• 21729810375 backwards is 57301892712
• 21729810375 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21729810375's digits is 45
• More coming soon!