21428948520

Names of 21428948520

• Cardinal: 21428948520 can be written as Twenty-one billion, four hundred twenty-eight million, nine hundred forty-eight thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.142894852 × 10¹⁰

Factors of 21428948520

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 133

Divisors of 21428948520

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 43 45 49 54 56 60 63 70 72 73 81 84 86 90 98 105 108 120 126 129 135 140 146 147 162 168 172 180 189 196 210 215 216 219 245 252 258 270 280 292 294 301 315 324 344 360 365 378 387 392 405 420 430 438 441 490 504 511 516 540 567 584 588 602 630 645 648 657 730 735 756 774 810 840 860 876 882 903 945 980 1022 1032 1080 1095 1134 1161 1176 1204 1260 1290 1314 1323 1460 1470 1505 1512 1533 1548 1620 1720 1752 1764 1806 1849 1890 1935 1960 1971 2044 2107 2190 2205 2268 2322 2408 2520 2555 2580 2628 2646 2709 2835 2920 2940 3010 3066 3096 3139 3240 3285 3483 3528 3577 3612 3698 3780 3870 3942 3969 4088 4214 4380 4410 4515 4536 4599 4644 5110 5160 5256 5292 5418 5547 5670 5805 5880 5913 6020 6132 6278 6321 6570 6615 6966 7154 7224 7396 7560 7665 7740 7884 7938 8127 8428 8760 8820 9030 9198 9245 9288 9417 9855 10220 10535 10584 10731 10836 11094 11340 11610 11826 12040 12264 12556 12642 12943 13140 13230 13545 13797 13932 14308 14792 15330 15480 15695 15768 15876 16254 16641 16856 17415 17640 17885 18060 18396 18490 18834 18963 19710 19845 20440 21070 21462 21672 21973 22188 22680 22995 23220 23652 24381 25112 25284 25886 26280 26460 27090 27594 27735 27864 28251 28616 29565 30660 31390 31605 31752 32193 32508 33282 34830 35770 36120 36792 36980 37668 37926 38829 39420 39690 40635 41391 42140 42924 43946 44376 45990 46440 47085 47304 48762 49923 50568 51772 52920 53655 54180 55188 55470 56502 56889 59130 61320 62780 63210 64386 64715 65016 65919 66564 68985 69660 71540 73960 75336 75852 77658 78840 79380 81270 82782 83205 84280 84753 85848 87892 90601 91980 94170 94815 96579 97524 99846 103544 107310 108360 109865 110376 110940 113004 113778 116487 118260 121905 125560 126420 128772 129430 131838 133128 134977 137970 139320 141255 143080 149769 151704 153811 155316 158760 160965 162540 165564 166410 169506 170667 175784 181202 183960 188340 189630 193158 194145 195048 197757 199692 206955 214620 219730 221880 226008 227556 232974 236520 243810 249615 252840 254259 257544 258860 263676 269954 271803 275940 282510 284445 289737 299538 307622 310632 321930 325080 329595 331128 332820 339012 341334 349461 362404 376680 379260 386316 388290 395514 399384 404931 413910 423765 429240 439460 453005 455112 461433 465948 482895 487620 499230 508518 517720 527352 539908 543606 551880 565020 568890 579474 582435 593271 599076 615244 643860 659190 665640 674885 678024 682668 698922 724808 748845 758520 769055 772632 776580 791028 809862 815409 827820 847530 853335 878920 906010 922866 931896 944839 965790 975240 988785 998460 1017036 1048383 1079816 1087212 1130040 1137780 1158948 1164870 1186542 1198152 1214793 1230488 1271295 1287720 1318380 1349770 1359015 1365336 1384299 1397844 1448685 1497690 1538110 1553160 1582056 1619724 1630818 1655640 1695060 1706670 1747305 1779813 1812020 1845732 1889678 1931580 1977570 1996920 2024655 2034072 2096766 2174424 2275560 2307165 2317896 2329740 2373084 2429586 2446227 2542590 2636760 2699540 2718030 2768598 2795688 2834517 2897370 2966355 2995380 3076220 3239448 3261636 3390120 3413340 3494610 3559626 3624040 3644379 3691464 3779356 3863160 3955140 4049310 4077045 4152897 4193532 4614330 4659480 4724195 4746168 4859172 4892454 5085180 5241915 5399080 5436060 5537196 5669034 5794740 5932710 5990760 6073965 6152440 6523272 6613873 6826680 6921495 6989220 7119252 7288758 7338681 7558712 7910280 8098620 8154090 8305794 8387064 8503551 8899065 9228660 9448390 9718344 9784908 10170360 10483830 10872120 10933137 11074392 11338068 11589480 11865420 12147930 12231135 12458691 13227746 13842990 13978440 14172585 14238504 14577516 14677362 16197240 16308180 16611588 17007102 17798130 18221895 18457320 18896780 19569816 19841619 20764485 20967660 21866274 22676136 23730840 24295860 24462270 24917382 25510653 26455492 27685980 28345170 29155032 29354724 32616360 33069365 33223176 34014204 35596260 36443790 36693405 37793560 39683238 41528970 41935320 42517755 43732548 48591720 48924540 49834764 51021306 52910984 54665685 55371960 56690340 58709448 59524857 62293455 66138730 68028408 71192520 72887580 73386810 76531959 79366476 83057940 85035510 87465096 97849080 99208095 99669528 102042612 109331370 113380680 119049714 124586910 127553265 132277460 145775160 146773620 153063918 158732952 166115880 170071020 178574571 198416190 204085224 218662740 238099428 249173820 255106530 264554920 293547240 297624285 306127836 340142040 357149142 382659795 396832380 437325480 476198856 498347640 510213060 535723713 595248570 612255672 714298284 765319590 793664760 892872855 1020426120 1071447426 1190497140 1428596568 1530639180 1785745710 2142894852 2380994280 2678618565 3061278360 3571491420 4285789704 5357237130 7142982840 10714474260 21428948520
• Sum of all divisors σ(n): 86953099860
• Sum of proper divisors (its aliquot sum) s(n): 65524151340
• 21428948520 is an abundant number, because the sum of its proper divisors (65524151340) is greater than itself. Its abundance is 44095202820

Bases of 21428948520

• Binary: 10011111101010000111100111000101000₂
• Hexadecimal: 0x4FD43CE28
• Base-36: 9UE8QI0

Squares and roots of 21428948520

• 21428948520 squared (21428948520²) is 459199834672810190400
• 21428948520 cubed (21428948520³) is 9840169617596160613812998208000
• The square root of 21428948520 is 146386.2989490479
• The cube root of 21428948520 is 2777.5824141761

Scales and comparisons

• 21,428,948,520 seconds is equal to 681 years, 19 weeks, 3 days, 5 hours, 42 minutes.
• To count from 1 to 21,428,948,520 would take you about one thousand, three hundred sixty-two 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 21428948520 cubic inches would be around 231.5 feet tall.

Recreational maths with 21428948520

• 21428948520 backwards is 02584982412
• 21428948520 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21428948520's digits is 45
• More coming soon!