21312520320

Names of 21312520320

• Cardinal: 21312520320 can be written as Twenty-one billion, three hundred twelve million, five hundred twenty thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.131252032 × 10¹⁰

Factors of 21312520320

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 800

Divisors of 21312520320

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 32 35 39 40 42 48 52 56 60 64 65 70 78 80 84 91 96 104 105 112 120 128 130 140 156 160 168 182 192 195 208 210 223 224 240 260 273 280 312 320 336 364 384 390 416 420 446 448 455 480 520 546 547 560 624 640 669 672 728 780 832 840 892 896 910 960 1040 1092 1094 1115 1120 1248 1338 1344 1365 1456 1560 1561 1641 1664 1680 1784 1820 1920 2080 2184 2188 2230 2240 2496 2676 2688 2730 2735 2899 2912 3120 3122 3282 3345 3360 3568 3640 3829 4160 4368 4376 4460 4480 4683 4992 5352 5460 5470 5798 5824 6240 6244 6564 6690 6720 7111 7136 7280 7658 7805 8205 8320 8697 8736 8752 8920 9366 10704 10920 10940 11487 11596 11648 12480 12488 13128 13380 13440 14222 14272 14495 14560 15316 15610 16410 17394 17472 17504 17840 18732 19145 20293 21333 21408 21840 21880 22974 23192 23415 24960 24976 26256 26760 28444 28544 28990 29120 30632 31220 32820 34788 34944 35008 35555 35680 37464 38290 40586 42666 42816 43485 43680 43760 45948 46384 46830 49777 49952 52512 53520 56888 57435 57980 58240 60879 61264 62440 65640 69576 70016 71110 71360 74928 76580 81172 85332 85632 86970 87360 87520 91896 92768 93660 99554 99904 101465 105024 106665 107040 113776 114870 115960 121758 121981 122528 124880 131280 139152 142220 142720 149331 149856 153160 162344 170664 173940 174720 175040 183792 185536 187320 199108 199808 202930 210048 213330 214080 227552 229740 231920 243516 243962 245056 248885 249760 262560 278304 284440 298662 299712 304395 306320 324688 341328 347880 350080 365943 367584 371072 374640 398216 405860 426660 428160 455104 459480 463840 487032 487924 490112 497770 499520 525120 556608 568880 597324 599424 608790 609905 612640 649376 682656 695760 731886 735168 746655 749280 796432 811720 853320 853867 910208 918960 927680 974064 975848 995540 999040 1050240 1113216 1137760 1194648 1217580 1219810 1225280 1298752 1365312 1391520 1463772 1470336 1493310 1498560 1585753 1592864 1623440 1706640 1707734 1829715 1837920 1855360 1948128 1951696 1991080 2275520 2389296 2435160 2439620 2450560 2561601 2597504 2730624 2783040 2927544 2986620 2997120 3171506 3185728 3246880 3413280 3415468 3659430 3675840 3896256 3903392 3982160 4269335 4551040 4757259 4778592 4870320 4879240 5123202 5566080 5855088 5973240 6343012 6371456 6493760 6826560 6830936 7318860 7351680 7792512 7806784 7928765 7964320 8538670 9514518 9557184 9740640 9758480 10246404 11100271 11710176 11946480 12686024 12808005 12987520 13653120 13661872 14637720 15613568 15857530 15928640 17077340 19029036 19114368 19481280 19516960 20492808 22200542 23420352 23786295 23892960 25372048 25616010 27323744 29275440 31715060 31857280 33300813 34154680 38058072 38962560 39033920 40985616 44401084 46840704 47572590 47785920 50744096 51232020 54647488 55501355 58550880 63430120 66601626 68309360 76116144 78067840 81971232 88802168 95145180 95571840 101488192 102464040 109294976 111002710 117101760 126860240 133203252 136618720 152232288 163942464 166504065 177604336 190290360 202976384 204928080 222005420 234203520 253720480 266406504 273237440 304464576 327884928 333008130 355208672 380580720 409856160 444010840 507440960 532813008 546474880 608929152 666016260 710417344 761161440 819712320 888021680 1014881920 1065626016 1332032520 1420834688 1522322880 1639424640 1776043360 2131252032 2664065040 3044645760 3552086720 4262504064 5328130080 7104173440 10656260160 21312520320
• Sum of all divisors σ(n): 84139130880
• Sum of proper divisors (its aliquot sum) s(n): 62826610560
• 21312520320 is an abundant number, because the sum of its proper divisors (62826610560) is greater than itself. Its abundance is 41514090240

Bases of 21312520320

• Binary: 10011110110010100110100000010000000₂
• Hexadecimal: 0x4F6534080
• Base-36: 9SGX9XC

Squares and roots of 21312520320

• 21312520320 squared (21312520320²) is 454223522390412902400
• 21312520320 cubed (21312520320³) is 9680648050767649955590176768000
• The square root of 21312520320 is 145988.0828013027
• The cube root of 21312520320 is 2772.5428703411

Scales and comparisons

• 21,312,520,320 seconds is equal to 677 years, 34 weeks, 6 days, 16 hours, 32 minutes.
• To count from 1 to 21,312,520,320 would take you about one thousand, three hundred fifty-five 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 21312520320 cubic inches would be around 231 feet tall.

Recreational maths with 21312520320

• 21312520320 backwards is 02302521312
• 21312520320 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21312520320's digits is 21
• More coming soon!