21491620480

Names of 21491620480

• Cardinal: 21491620480 can be written as Twenty-one billion, four hundred ninety-one million, six hundred twenty thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.149162048 × 10¹⁰

Factors of 21491620480

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 212

Divisors of 21491620480

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 4 5 8 10 11 16 19 20 22 31 32 38 40 44 55 62 64 71 73 76 80 88 95 110 124 128 142 146 152 155 160 176 190 209 220 248 284 292 304 310 320 341 352 355 365 380 418 440 496 568 584 589 608 620 640 682 704 710 730 760 781 803 836 880 992 1045 1136 1168 1178 1216 1240 1349 1364 1387 1408 1420 1460 1520 1562 1606 1672 1705 1760 1984 2090 2201 2263 2272 2336 2356 2432 2480 2698 2728 2774 2840 2920 2945 3040 3124 3212 3344 3410 3520 3905 3968 4015 4180 4402 4526 4544 4672 4712 4960 5183 5396 5456 5548 5680 5840 5890 6080 6248 6424 6479 6688 6745 6820 6935 7040 7810 8030 8360 8804 9052 9088 9344 9424 9920 10366 10792 10912 11005 11096 11315 11360 11680 11780 12160 12496 12848 12958 13376 13490 13640 13870 14839 15257 15620 16060 16720 17608 18104 18848 19840 20732 21584 21824 22010 22192 22630 22720 23360 23560 24211 24893 24992 25696 25915 25916 26752 26980 27280 27740 29678 30514 31240 32120 32395 33440 35216 36208 37696 41464 41819 42997 43168 43648 44020 44384 45260 45440 46720 47120 48422 49786 49984 51392 51830 51832 53960 54560 55480 57013 59356 61028 62480 64240 64790 66880 70432 72416 74195 75392 76285 82928 83638 85994 86336 88040 88768 90520 94240 96844 98477 99572 99968 102784 103660 103664 107920 109120 110960 114026 118712 121055 122056 124465 124960 128480 129580 133760 140864 144832 148390 152570 160673 165856 167276 171988 172672 176080 177536 181040 188480 193688 196954 199144 207320 207328 209095 214985 215840 218240 221920 228052 237424 242110 244112 248930 249920 256960 259160 281728 285065 289664 296780 305140 321346 331712 334552 343976 352160 362080 376960 387376 393908 398288 414640 414656 418190 429970 431680 443840 456104 460009 472967 474848 484220 488224 492385 497860 499840 513920 518320 570130 593560 610280 642692 663424 669104 687952 704320 724160 774752 787816 796576 803365 829280 829312 836380 859940 863360 887680 912208 920018 945934 949696 968440 976448 984770 995720 1036640 1083247 1140260 1187120 1220560 1285384 1338208 1375904 1408640 1448320 1549504 1575632 1593152 1606730 1658560 1672760 1719880 1767403 1824416 1840036 1891868 1899392 1936880 1952896 1969540 1991440 2073280 2166494 2280520 2300045 2364835 2374240 2441120 2570768 2676416 2751808 3052787 3099008 3151264 3186304 3213460 3317120 3345520 3439760 3534806 3648832 3680072 3783736 3873760 3939080 3982880 4146560 4332988 4561040 4600090 4729670 4748480 4882240 5141536 5352832 5416235 5503616 6105574 6302528 6426920 6691040 6879520 7069612 7297664 7360144 7567472 7747520 7878160 7965760 8665976 8837015 9122080 9200180 9459340 9496960 9764480 10283072 10832470 12211148 12605056 12853840 13382080 13759040 14139224 14720288 15134944 15263935 15495040 15756320 15931520 17331952 17674030 18244160 18400360 18918680 20566144 21664940 24422296 25707680 26764160 27518080 28278448 29440576 30269888 30527870 31512640 33580657 34663904 35348060 36488320 36800720 37837360 43329880 48844592 51415360 56556896 58881152 60539776 61055740 63025280 67161314 69327808 70696120 73601440 75674720 86659760 97689184 102830720 113113792 122111480 134322628 138655616 141392240 147202880 151349440 167903285 173319520 195378368 226227584 244222960 268645256 282784480 294405760 302698880 335806570 346639040 390756736 488445920 537290512 565568960 671613140 693278080 976891840 1074581024 1131137920 1343226280 1953783680 2149162048 2686452560 4298324096 5372905120 10745810240 21491620480
• Sum of all divisors σ(n): 62606131200
• Sum of proper divisors (its aliquot sum) s(n): 41114510720
• 21491620480 is an abundant number, because the sum of its proper divisors (41114510720) is greater than itself. Its abundance is 19622890240

Bases of 21491620480

• Binary: 10100000001000000000001101010000000₂
• Hexadecimal: 0x501001A80
• Base-36: 9VFK0HS

Squares and roots of 21491620480

• 21491620480 squared (21491620480²) is 461889750856355430400
• 21491620480 cubed (21491620480³) is 9926759229006545906143854592000
• The square root of 21491620480 is 146600.2062754347
• The cube root of 21491620480 is 2780.2875882115

Scales and comparisons

• 21,491,620,480 seconds is equal to 683 years, 19 weeks, 14 hours, 34 minutes, 40 seconds.
• To count from 1 to 21,491,620,480 would take you about one thousand, three hundred sixty-six 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 21491620480 cubic inches would be around 231.7 feet tall.

Recreational maths with 21491620480

• 21491620480 backwards is 08402619412
• The number of decimal digits it has is: 11
• The sum of 21491620480's digits is 37
• More coming soon!