21357400680

Names of 21357400680

• Cardinal: 21357400680 can be written as Twenty-one billion, three hundred fifty-seven million, four hundred thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.135740068 × 10¹⁰

Factors of 21357400680

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1978

Divisors of 21357400680

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 18 19 20 21 22 24 27 28 30 33 35 36 38 40 42 44 45 49 54 55 56 57 60 63 66 70 72 76 77 84 88 90 95 98 99 105 108 110 114 120 126 132 133 135 140 147 152 154 165 168 171 180 189 190 196 198 209 210 216 220 228 231 245 252 264 266 270 280 285 294 297 308 315 330 342 360 378 380 385 392 396 399 418 420 440 441 456 462 490 495 504 513 532 539 540 570 588 594 616 627 630 660 665 684 693 735 756 760 770 792 798 836 840 855 882 924 931 945 980 990 1026 1045 1064 1078 1080 1140 1155 1176 1188 1197 1254 1260 1320 1323 1330 1368 1386 1463 1470 1485 1512 1540 1596 1617 1672 1710 1764 1848 1862 1881 1890 1931 1960 1980 1995 2052 2079 2090 2156 2205 2280 2310 2376 2394 2508 2520 2565 2646 2660 2695 2772 2793 2926 2940 2970 3080 3135 3192 3234 3420 3465 3528 3591 3724 3762 3780 3862 3960 3990 4104 4158 4180 4312 4389 4410 4620 4655 4788 4851 5016 5130 5292 5320 5390 5544 5586 5643 5793 5852 5880 5940 5985 6270 6468 6615 6840 6930 7182 7315 7448 7524 7560 7724 7980 8085 8316 8360 8379 8778 8820 9240 9310 9405 9576 9655 9702 10241 10260 10395 10584 10780 11172 11286 11586 11704 11880 11970 12540 12936 13167 13230 13517 13860 13965 14364 14553 14630 15048 15448 15960 16170 16632 16758 17379 17556 17640 17955 18620 18810 19310 19404 20482 20520 20790 21241 21560 21945 22344 22572 23172 23940 24255 25080 25137 26334 26460 27034 27720 27930 28215 28728 28965 29106 29260 30723 32340 33516 34758 35112 35910 36689 37240 37620 38620 38808 39501 40551 40964 41580 41895 42482 43890 45144 46344 47880 48510 50274 51205 52137 52668 52920 54068 55860 56430 57930 58212 58520 61446 63723 64680 65835 67032 67585 69516 71820 72765 73378 75240 77240 79002 81102 81928 83160 83790 84964 86895 87780 92169 94619 97020 100548 102410 104274 105336 106205 108136 110067 111720 112860 115860 116424 121653 122892 125685 127446 131670 135170 139032 143640 145530 146756 148687 153615 158004 162204 167580 169928 173790 175560 183445 184338 189238 191169 194040 197505 201096 202755 204820 208548 212410 220134 225720 231720 243306 245784 251370 254892 256823 260685 263340 270340 276507 283857 291060 293512 297374 307230 316008 318615 324408 330201 335160 347580 364959 366890 368676 378476 382338 395010 403579 405510 409640 417096 424820 440268 446061 460845 473095 486612 502740 509784 513646 521370 526680 540680 550335 553014 567714 573507 582120 594748 608265 614460 637230 660402 695160 729918 733780 737352 743435 756952 764676 770469 790020 807158 811020 849640 851571 880536 892122 921690 946190 955845 973224 990603 1005480 1027292 1040809 1042740 1100670 1106028 1135428 1147014 1189496 1210737 1216530 1228920 1274460 1284115 1320804 1338183 1382535 1419285 1459836 1467560 1486870 1529352 1540938 1580040 1614316 1622040 1651005 1703142 1784244 1797761 1824795 1843380 1892380 1911690 1981206 2017895 2054584 2081618 2085480 2201340 2212056 2230305 2270856 2294028 2311407 2421474 2433060 2548920 2554713 2568230 2641608 2676366 2765070 2825053 2838570 2867535 2919672 2973740 3081876 3122427 3228632 3302010 3406284 3568488 3595522 3632211 3649590 3686760 3784760 3823380 3852345 3962412 4014549 4035790 4163236 4257855 4402680 4460610 4588056 4622814 4842948 4866120 4953015 5109426 5136460 5204045 5352732 5393283 5530140 5650106 5677140 5735070 5947480 6053685 6163752 6244854 6604020 6690915 6812568 6934221 7191044 7264422 7299180 7646760 7704690 7924824 8029098 8071580 8326472 8475159 8515710 8921220 8988805 9245628 9367281 9685896 9906030 10218852 10272920 10408090 10705464 10786566 10896633 11060280 11300212 11354280 11470140 11557035 12107370 12489708 12773565 13208040 13381830 13868442 14125265 14382088 14528844 14598360 15409380 15612135 16058196 16143160 16179849 16950318 17031420 17842440 17977610 18161055 18491256 18734562 19775371 19812060 20072745 20437704 20816180 21573132 21793266 22600424 22940280 23114070 24214740 24979416 25425477 25547130 26763660 26966415 27736884 28101843 28250530 29057688 30818760 31224270 32116392 32359698 33900636 34062840 34671105 35955220 36322110 37469124 39550742 39624120 40145490 41632360 42375795 43146264 43586532 46228140 46836405 48429480 48539547 50850954 51094260 53527320 53932830 54483165 55473768 56203686 56501060 59326113 62448540 64719396 67801272 69342210 71910440 72644220 74938248 76276431 79101484 80290980 80899245 84751590 87173064 92456280 93672810 97079094 98876855 101701908 102188520 107865660 108966330 112407372 113002120 118652226 124897080 127127385 129438792 138684420 140509215 145288440 152552862 158202968 160581960 161798490 169503180 177978339 187345620 194158188 197753710 203403816 215731320 217932660 224814744 237304452 242697735 254254770 277368840 281018430 296630565 305105724 323596980 339006360 355956678 374691240 381382155 388316376 395507420 435865320 474608904 485395470 508509540 533935017 562036860 593261130 610211448 647193960 711913356 762764310 791014840 889891695 970790940 1017019080 1067870034 1124073720 1186522260 1423826712 1525528620 1779783390 1941581880 2135740068 2373044520 2669675085 3051057240 3559566780 4271480136 5339350170 7119133560 10678700340 21357400680
• Sum of all divisors σ(n): 95147136000
• Sum of proper divisors (its aliquot sum) s(n): 73789735320
• 21357400680 is an abundant number, because the sum of its proper divisors (73789735320) is greater than itself. Its abundance is 52432334640

Bases of 21357400680

• Binary: 10011111001000000000001001001101000₂
• Hexadecimal: 0x4F9001268
• Base-36: 9T7N7U0

Squares and roots of 21357400680

• 21357400680 squared (21357400680²) is 456138563806064462400
• 21357400680 cubed (21357400680³) is 9741934072805864537385594432000
• The square root of 21357400680 is 146141.7143734123
• The cube root of 21357400680 is 2774.4876658253

Scales and comparisons

• 21,357,400,680 seconds is equal to 679 years, 5 weeks, 1 day, 3 hours, 18 minutes.
• To count from 1 to 21,357,400,680 would take you about one thousand, three hundred fifty-eight 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 21357400680 cubic inches would be around 231.2 feet tall.

Recreational maths with 21357400680

• 21357400680 backwards is 08600475312
• 21357400680 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21357400680's digits is 36
• More coming soon!