21023113920

Names of 21023113920

• Cardinal: 21023113920 can be written as Twenty-one billion, twenty-three million, one hundred thirteen thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.102311392 × 10¹⁰

Factors of 21023113920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 646

Divisors of 21023113920

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 19 20 24 30 32 34 38 40 48 51 57 60 64 68 76 80 85 95 96 102 114 120 136 151 152 160 170 190 192 204 228 240 255 272 285 302 304 320 323 340 380 408 449 453 456 480 510 544 570 604 608 646 680 755 760 816 898 906 912 960 969 1020 1088 1140 1208 1216 1292 1347 1360 1510 1520 1615 1632 1796 1812 1824 1938 2040 2245 2265 2280 2416 2567 2584 2694 2720 2869 3020 3040 3230 3264 3592 3624 3648 3876 4080 4490 4530 4560 4832 4845 5134 5168 5388 5440 5738 6040 6080 6460 6735 7184 7248 7633 7701 7752 8160 8531 8607 8980 9060 9120 9664 9690 10268 10336 10776 11476 12080 12835 12920 13470 14345 14368 14496 15266 15402 15504 16320 17062 17214 17960 18120 18240 19380 20536 20672 21552 22899 22952 24160 25593 25670 25840 26940 28690 28736 28992 30532 30804 31008 34124 34428 35920 36240 38165 38505 38760 41072 42655 43035 43104 45798 45904 48320 48773 51186 51340 51680 53880 57380 61064 61608 62016 67799 68248 68856 71840 72480 76330 77010 77520 82144 85310 86070 86208 91596 91808 97546 102372 102680 103360 107760 114495 114760 122128 123216 127965 135598 136496 137712 143680 144960 145027 146319 152660 154020 155040 164288 170620 172140 183192 183616 195092 203397 204744 205360 215520 228990 229520 243865 244256 246432 255930 271196 272992 275424 290054 292638 305320 308040 310080 338995 341240 344280 366384 390184 406794 409488 410720 431040 435081 457980 459040 487730 488512 492864 511860 542392 545984 550848 580108 585276 610640 616080 677990 682480 688560 725135 731595 732768 780368 813588 818976 821440 870162 915960 918080 975460 1016985 1023720 1084784 1152583 1160216 1170552 1221280 1232160 1288181 1355980 1364960 1377120 1450270 1463190 1465536 1560736 1627176 1637952 1740324 1831920 1950920 2033970 2047440 2169568 2175405 2305166 2320432 2341104 2442560 2464320 2576362 2711960 2729920 2754240 2900540 2926380 3121472 3254352 3457749 3480648 3663840 3864543 3901840 4067940 4094880 4339136 4350810 4610332 4640864 4682208 5152724 5423920 5762915 5801080 5852760 6440905 6508704 6915498 6961296 7327680 7729086 7803680 8135880 8189760 8701620 9220664 9281728 9364416 10305448 10847840 11525830 11602160 11705520 12881810 13017408 13830996 13922592 15458172 15607360 16271760 17288745 17403240 18441328 19322715 20610896 21695680 21899077 23051660 23204320 23411040 25763620 27661992 27845184 30916344 32543520 34577490 34806480 36882656 38645430 41221792 43798154 46103320 46408640 46822080 51527240 55323984 61832688 65087040 65697231 69154980 69612960 73765312 77290860 82443584 87596308 92206640 103054480 109495385 110647968 123665376 131394462 138309960 139225920 154581720 175192616 184413280 206108960 218990770 221295936 247330752 262788924 276619920 309163440 328486155 350385232 368826560 412217920 437981540 525577848 553239840 618326880 656972310 700770464 875963080 1051155696 1106479680 1236653760 1313944620 1401540928 1751926160 2102311392 2627889240 3503852320 4204622784 5255778480 7007704640 10511556960 21023113920
• Sum of all divisors σ(n): 75053952000
• Sum of proper divisors (its aliquot sum) s(n): 54030838080
• 21023113920 is an abundant number, because the sum of its proper divisors (54030838080) is greater than itself. Its abundance is 33007724160

Bases of 21023113920

• Binary: 10011100101000100110100001011000000₂
• Hexadecimal: 0x4E51342C0
• Base-36: 9NOMAIO

Squares and roots of 21023113920

• 21023113920 squared (21023113920²) is 441971318893297766400
• 21023113920 cubed (21023113920³) is 9291613386466447267508748288000
• The square root of 21023113920 is 144993.4961299989
• The cube root of 21023113920 is 2759.9360203611

Scales and comparisons

• 21,023,113,920 seconds is equal to 668 years, 24 weeks, 3 days, 1 hour, 52 minutes.
• To count from 1 to 21,023,113,920 would take you about one thousand, three hundred thirty-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 21023113920 cubic inches would be around 230 feet tall.

Recreational maths with 21023113920

• 21023113920 backwards is 02931132012
• 21023113920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21023113920's digits is 24
• More coming soon!