21017081470

Names of 21017081470

• Cardinal: 21017081470 can be written as Twenty-one billion, seventeen million, eighty-one thousand, four hundred seventy.

Scientific notation

• Scientific notation: 2.101708147 × 10¹⁰

Factors of 21017081470

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 224

Divisors of 21017081470

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 5 7 10 11 14 17 22 31 34 35 49 55 62 70 77 85 98 110 119 151 154 155 170 187 217 238 245 302 310 341 343 374 385 434 490 527 539 595 682 686 755 770 833 935 1054 1057 1078 1085 1190 1309 1510 1519 1661 1666 1705 1715 1870 2114 2170 2387 2401 2567 2618 2635 2695 3038 3322 3410 3430 3689 3773 4165 4681 4774 4802 5134 5270 5285 5390 5797 5831 6545 7378 7399 7546 7595 8305 8330 9163 9362 10570 10633 11594 11627 11662 11935 12005 12835 13090 14798 15190 16610 16709 17969 18326 18445 18865 21266 23254 23405 23870 24010 25670 25823 26411 28237 28985 29155 32767 33418 35938 36890 36995 37730 40579 40817 45815 46810 51491 51646 51793 52822 53165 56474 57970 58135 58310 64141 65534 73990 74431 79577 81158 81389 81634 83545 89845 91630 102982 103586 106330 116270 116963 125783 128282 129115 132055 141185 148862 159154 162778 163835 167090 179690 180761 197659 202895 204085 229369 233926 251566 257455 258230 258965 264110 282370 284053 320705 327670 360437 361522 362551 372155 395318 397885 405790 406945 408170 448987 458738 514910 517930 557039 568106 569723 584815 628915 641410 720874 725102 744310 795770 813890 818741 875347 880481 897974 903805 988295 1114078 1139446 1146845 1169630 1257830 1265327 1383613 1420265 1605583 1637482 1750694 1760962 1802185 1807610 1812755 1976590 1988371 2244935 2293690 2523059 2530654 2767226 2785195 2840530 2848615 3211166 3604370 3625510 3899273 3976742 3988061 4093705 4376735 4402405 4489870 5046118 5570390 5697230 6127429 6163367 6326635 6918065 7798546 7976122 8027915 8187410 8753470 8804810 9685291 9941855 11239081 12254858 12326734 12615295 12653270 13836130 13918597 16055830 17661413 19370582 19496365 19883710 19940305 22478162 25230590 27294911 27837194 30637145 30816835 35322826 38992730 39880610 42892003 48426455 54589822 56195405 61274290 61633670 67797037 69592985 85784006 88307065 96852910 112390810 123629891 135594074 136474555 139185970 176614130 191064377 214460015 247259782 272949110 300244021 338985185 382128754 428920030 600488042 618149455 677970370 955321885 1236298910 1501220105 1910643770 2101708147 3002440210 4203416294 10508540735 21017081470
• Sum of all divisors σ(n): 52970360832
• Sum of proper divisors (its aliquot sum) s(n): 31953279362
• 21017081470 is an abundant number, because the sum of its proper divisors (31953279362) is greater than itself. Its abundance is 10936197892

Bases of 21017081470

• Binary: 10011100100101101110011011001111110₂
• Hexadecimal: 0x4E4B7367E
• Base-36: 9NL0ZUM

Squares and roots of 21017081470

• 21017081470 squared (21017081470²) is 441717713516617360900
• 21017081470 cubed (21017081470³) is 9283617171720867272851692523000
• The square root of 21017081470 is 144972.6921526947
• The cube root of 21017081470 is 2759.6720130273

Scales and comparisons

• 21,017,081,470 seconds is equal to 668 years, 14 weeks, 3 days, 6 hours, 11 minutes, 10 seconds.
• To count from 1 to 21,017,081,470 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 21017081470 cubic inches would be around 230 feet tall.

Recreational maths with 21017081470

• 21017081470 backwards is 07418071012
• 21017081470 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21017081470's digits is 31
• More coming soon!