21451649238000

Names of 21451649238000

• Cardinal: 21451649238000 can be written as Twenty-one trillion, four hundred fifty-one billion, six hundred forty-nine million, two hundred thirty-eight thousand.

Scientific notation

• Scientific notation: 2.1451649238 × 10¹³

Factors of 21451649238000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2440

Divisors of 21451649238000

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 125 144 150 180 200 225 240 250 251 300 360 375 400 450 500 502 600 720 750 753 900 1000 1004 1125 1200 1255 1500 1506 1800 2000 2008 2179 2250 2259 2510 3000 3012 3600 3765 4016 4358 4500 4518 5020 6000 6024 6275 6537 7530 8716 9000 9036 10040 10895 11295 12048 12550 13074 15060 17432 18000 18072 18825 19611 20080 21790 22590 25100 26148 30120 31375 32685 34864 36144 37650 39222 43580 45180 50200 52296 54475 56475 60240 62750 65370 75300 78444 87160 90360 94125 98055 100400 104592 108950 112950 125500 130740 150600 156888 163425 174320 180720 188250 196110 217900 225900 251000 261480 272375 282375 301200 313776 326850 376500 392220 435800 451800 490275 502000 522960 544750 546929 564750 653700 753000 784440 817125 871600 903600 980550 1089500 1093858 1129500 1307400 1506000 1568880 1634250 1640787 1961100 2179000 2187716 2259000 2451375 2614800 2734645 3268500 3281574 3922200 4358000 4375432 4518000 4748041 4902750 4922361 5469290 6537000 6563148 7844400 8203935 8750864 9496082 9805500 9844722 10938580 13074000 13126296 13673225 14244123 16407870 18992164 19611000 19689444 21877160 23740205 24611805 26252592 27346450 28488246 32815740 37984328 39222000 39378888 41019675 42732369 43754320 47480410 49223610 54692900 56976492 65631480 68366125 71220615 75968656 78757776 82039350 85464738 94960820 98447220 109385800 113952984 118701025 123059025 131262960 136732250 142441230 164078700 170929476 189921640 196894440 205098375 213661845 218771600 227905968 237402050 246118050 273464500 284882460 328157400 341858952 356103075 379843280 393788880 410196750 427323690 474804100 492236100 546929000 569764920 593505125 615295125 656314800 683717904 712206150 820393500 854647380 949608200 984472200 1068309225 1093858000 1139529840 1187010250 1191758291 1230590250 1424412300 1640787000 1709294760 1780515375 1899216400 1968944400 2136618450 2374020500 2383516582 2461180500 2848824600 3281574000 3418589520 3561030750 3575274873 4273236900 4748041000 4767033164 4922361000 5341546125 5697649200 5958791455 7122061500 7150549746 8546473800 9496082000 9534066328 9844722000 10683092250 10725824619 11917582910 14244123000 14301099492 17092947600 17876374365 19068132656 21366184500 21451649238 23835165820 28488246000 28602198984 29793957275 35752748730 42732369000 42903298476 47670331640 53629123095 57204397968 59587914550 71505497460 85464738000 85806596952 89381871825 95340663280 107258246190 119175829100 143010994920 148969786375 171613193904 178763743650 214516492380 238351658200 268145615475 286021989840 297939572750 357527487300 429032984760 446909359125 476703316400 536291230950 595879145500 715054974600 858065969520 893818718250 1072582461900 1191758291000 1340728077375 1430109949200 1787637436500 2145164923800 2383516582000 2681456154750 3575274873000 4290329847600 5362912309500 7150549746000 10725824619000 21451649238000
• Sum of all divisors σ(n): 75256497244656
• Sum of proper divisors (its aliquot sum) s(n): 53804848006656
• 21451649238000 is an abundant number, because the sum of its proper divisors (53804848006656) is greater than itself. Its abundance is 32353198768656

Bases of 21451649238000

• Binary: 100111000001010011001111011101100001111110000₂
• Hexadecimal: 0x138299EEC3F0
• Base-36: 7LQR23A40

Squares and roots of 21451649238000

• 21451649238000 squared (21451649238000²) is 460173255030185980644000000
• 21451649238000 cubed (21451649238000³) is 9871475255616268758680145349272000000000
• The square root of 21451649238000 is 4631592.5164029705
• The cube root of 21451649238000 is 27785.6287701545

Scales and comparisons

• 21,451,649,238,000 seconds is equal to 682,096 years, 4 weeks, 5 days, 7 hours.
• To count from 1 to 21,451,649,238,000 would take you about one million, seven hundred five thousand, two hundred forty 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 21451649238000 cubic inches would be around 2315.5 feet tall.

Recreational maths with 21451649238000

• 21451649238000 backwards is 00083294615412
• 21451649238000 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21451649238000's digits is 45
• More coming soon!