21180023920

Names of 21180023920

• Cardinal: 21180023920 can be written as Twenty-one billion, one hundred eighty million, twenty-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.118002392 × 10¹⁰

Factors of 21180023920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 215

Divisors of 21180023920

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 5 8 10 11 16 17 20 22 34 40 44 55 67 68 80 85 88 110 113 121 134 136 170 176 187 220 226 242 268 272 289 335 340 374 440 452 484 536 565 578 605 670 680 737 748 880 904 935 968 1072 1130 1139 1156 1210 1243 1340 1360 1445 1474 1496 1808 1870 1921 1936 2057 2260 2278 2312 2420 2486 2680 2890 2948 2992 3179 3685 3740 3842 4114 4520 4556 4624 4840 4972 5360 5695 5780 5896 6215 6358 7370 7480 7571 7684 8107 8228 9040 9112 9605 9680 9944 10285 11390 11560 11792 12430 12529 12716 13673 14740 14960 15142 15368 15895 16214 16456 18224 19210 19363 19888 20570 21131 22780 23120 24860 25058 25432 27346 29480 30284 30736 31790 32428 32657 32912 34969 37855 38420 38726 40535 41140 42262 45560 49720 50116 50864 54692 58960 60568 62645 63580 64856 65314 68365 69938 75710 76840 77452 81070 82280 83281 84524 91120 96815 99440 100232 105655 109384 121136 125290 127160 128707 129712 130628 136730 137819 139876 151420 153680 154904 162140 163285 164560 166562 169048 174845 193630 200464 211310 212993 218768 232441 250580 254320 257414 261256 273460 275638 279752 302840 309808 324280 326570 333124 338096 349690 359227 387260 416405 422620 425986 464882 501160 514828 522512 546920 551276 559504 605680 643535 648560 653140 666248 689095 699380 718454 774520 832810 845240 851972 916091 929764 1002320 1029656 1064965 1093840 1102552 1162205 1287070 1306280 1332496 1378190 1398760 1415777 1436908 1549040 1665620 1690480 1703944 1796135 1832182 1859528 2059312 2129930 2188019 2205104 2324410 2342923 2574140 2612560 2756380 2797520 2831554 2873816 3331240 3407888 3592270 3664364 3719056 3951497 4259860 4376038 4580455 4648820 4685846 5148280 5512760 5663108 5747632 6662480 7078885 7184540 7328728 7902994 8519720 8752076 9160910 9297640 9371692 10296560 10940095 11025520 11326216 11714615 14157770 14369080 14657456 15573547 15805988 17039440 17504152 18321820 18595280 18743384 19757485 21880190 22652432 23429230 24068209 28315540 28738160 31147094 31611976 35008304 36643640 37486768 39514970 43760380 46858460 48136418 56631080 62294188 63223952 73287280 77867735 79029940 87520760 93716920 96272836 113262160 120341045 124588376 155735470 158059880 175041520 187433840 192545672 240682090 249176752 264750299 311470940 316119760 385091344 481364180 529500598 622941880 962728360 1059001196 1245883760 1323751495 1925456720 2118002392 2647502990 4236004784 5295005980 10590011960 21180023920
• Sum of all divisors σ(n): 58873075632
• Sum of proper divisors (its aliquot sum) s(n): 37693051712
• 21180023920 is an abundant number, because the sum of its proper divisors (37693051712) is greater than itself. Its abundance is 16513027792

Bases of 21180023920

• Binary: 10011101110011011011000010001110000₂
• Hexadecimal: 0x4EE6D8470
• Base-36: 9QA1F1S

Squares and roots of 21180023920

• 21180023920 squared (21180023920²) is 448593413251772166400
• 21180023920 cubed (21180023920³) is 9501219223026979466742220288000
• The square root of 21180023920 is 145533.5834781787
• The cube root of 21180023920 is 2766.7854432645

Scales and comparisons

• 21,180,023,920 seconds is equal to 673 years, 23 weeks, 6 days, 3 hours, 58 minutes, 40 seconds.
• To count from 1 to 21,180,023,920 would take you about one thousand, three hundred forty-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 21180023920 cubic inches would be around 230.6 feet tall.

Recreational maths with 21180023920

• 21180023920 backwards is 02932008112
• The number of decimal digits it has is: 11
• The sum of 21180023920's digits is 28
• More coming soon!