21720590640

Names of 21720590640

• Cardinal: 21720590640 can be written as Twenty-one billion, seven hundred twenty million, five hundred ninety thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.172059064 × 10¹⁰

Factors of 21720590640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1105

Divisors of 21720590640

• Number of divisors d(n): 600
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 49 54 56 60 63 67 70 72 80 81 84 90 98 105 108 112 120 126 134 135 140 144 147 162 168 180 189 196 201 210 216 240 245 252 268 270 280 294 315 324 335 336 360 378 392 402 405 420 432 441 469 490 504 536 540 560 567 588 603 630 648 670 720 735 756 784 804 810 840 882 938 945 980 1005 1008 1021 1072 1080 1134 1176 1206 1260 1296 1323 1340 1407 1470 1512 1608 1620 1680 1764 1809 1876 1890 1960 2010 2042 2160 2205 2268 2345 2352 2412 2520 2646 2680 2814 2835 2940 3015 3024 3063 3216 3240 3283 3528 3618 3752 3780 3920 3969 4020 4084 4221 4410 4536 4690 4824 5040 5105 5292 5360 5427 5628 5670 5880 6030 6126 6480 6566 6615 7035 7056 7147 7236 7504 7560 7938 8040 8168 8442 8820 9045 9072 9189 9380 9648 9849 10210 10584 10854 11256 11340 11760 12060 12252 12663 13132 13230 14070 14294 14472 15120 15315 15876 16080 16336 16415 16884 17640 18090 18378 18760 19698 19845 20420 21105 21168 21441 21708 22512 22680 24120 24504 25326 26264 26460 27135 27567 28140 28588 28944 29547 30630 31752 32830 33768 35280 35735 36180 36756 37520 37989 39396 39690 40840 42210 42882 43416 45360 45945 48240 49008 49245 50029 50652 52528 52920 54270 55134 56280 57176 59094 61260 63315 63504 64323 65660 67536 68407 71470 72360 73512 75978 78792 79380 81680 82701 84420 85764 86832 88641 91890 98490 100058 101304 105840 107205 108540 110268 112560 114352 118188 122520 126630 128646 131320 136814 137835 142940 144720 147024 147735 150087 151956 157584 158760 165402 168840 171528 177282 183780 189945 192969 196980 200116 202608 205221 214410 217080 220536 236376 245040 250145 253260 257292 262640 265923 273628 275670 285880 295470 300174 303912 317520 321615 330804 337680 342035 343056 354564 367560 379890 385938 393960 400232 410442 413505 428820 434160 441072 443205 450261 472752 478849 500290 506520 514584 531846 547256 551340 571760 578907 590940 600348 607824 615663 643230 661608 684070 709128 735120 750435 759780 771876 787920 800464 820884 827010 857640 886410 900522 957698 964845 1000580 1013040 1026105 1029168 1063692 1094512 1102680 1157814 1181880 1200696 1231326 1286460 1323216 1329615 1350783 1368140 1418256 1436547 1500870 1519560 1543752 1641768 1654020 1715280 1772820 1801044 1846989 1915396 1929690 2001160 2052210 2127384 2205360 2251305 2315628 2363760 2394245 2401392 2462652 2572920 2659230 2701566 2736280 2873094 2894535 3001740 3039120 3078315 3087504 3283536 3308040 3351943 3545640 3602088 3693978 3830792 3859380 4002320 4052349 4104420 4254768 4309641 4502610 4631256 4788490 4925304 5145840 5318460 5403132 5472560 5540967 5746188 5789070 6003480 6156630 6616080 6703886 6753915 7091280 7182735 7204176 7387956 7661584 7718760 8104698 8208840 8619282 9005220 9234945 9262512 9576980 9850608 10055829 10636920 10806264 11081934 11492376 11578140 12006960 12313260 12928923 13407772 13507830 14365470 14775912 15437520 16209396 16417680 16759715 17238564 18010440 18469890 19153960 20111658 20261745 21273840 21548205 21612528 22163868 22984752 23156280 24626520 25857846 26815544 27015660 27704835 28730940 29551824 30167487 32418792 33519430 34477128 36020880 36939780 38307920 38786769 40223316 40523490 43096410 44327736 46312560 49253040 50279145 51715692 53631088 54031320 55409670 57461880 60334974 64644615 64837584 67038860 68954256 73879560 77573538 80446632 81046980 86192820 88655472 90502461 100558290 103431384 108062640 110819340 114923760 120669948 129289230 134077720 147759120 150837435 155147076 160893264 162093960 172385640 181004922 193933845 201116580 206862768 221638680 241339896 258578460 268155440 271507383 301674870 310294152 324187920 344771280 362009844 387867690 402233160 443277360 452512305 482679792 517156920 543014766 603349740 620588304 724019688 775735380 804466320 905024610 1034313840 1086029532 1206699480 1357536915 1448039376 1551470760 1810049220 2172059064 2413398960 2715073830 3102941520 3620098440 4344118128 5430147660 7240196880 10860295320 21720590640
• Sum of all divisors σ(n): 89152387632
• Sum of proper divisors (its aliquot sum) s(n): 67431796992
• 21720590640 is an abundant number, because the sum of its proper divisors (67431796992) is greater than itself. Its abundance is 45711206352

Bases of 21720590640

• Binary: 10100001110101001011110100100110000₂
• Hexadecimal: 0x50EA5E930
• Base-36: 9Z7VN00

Squares and roots of 21720590640

• 21720590640 squared (21720590640²) is 471784057750455609600
• 21720590640 cubed (21720590640³) is 10247428388875765569613254144000
• The square root of 21720590640 is 147379.0712414759
• The cube root of 21720590640 is 2790.1263903895

Scales and comparisons

• 21,720,590,640 seconds is equal to 690 years, 33 weeks, 4 days, 17 hours, 24 minutes.
• To count from 1 to 21,720,590,640 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 21720590640 cubic inches would be around 232.5 feet tall.

Recreational maths with 21720590640

• 21720590640 backwards is 04609502712
• 21720590640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21720590640's digits is 36
• More coming soon!