12420872640

Names of 12420872640

• Cardinal: 12420872640 can be written as Twelve billion, four hundred twenty million, eight hundred seventy-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.242087264 × 10¹⁰

Factors of 12420872640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 130

Divisors of 12420872640

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 88 90 96 99 108 109 110 120 121 132 135 144 160 165 176 180 192 198 216 218 220 240 242 264 270 288 297 320 327 330 352 360 363 396 432 436 440 480 484 495 528 540 545 576 594 605 654 660 704 720 726 792 864 872 880 960 968 981 990 1056 1080 1089 1090 1188 1199 1210 1308 1320 1440 1452 1485 1584 1635 1728 1744 1760 1815 1936 1962 1980 2112 2160 2178 2180 2376 2398 2420 2616 2640 2880 2904 2943 2970 3168 3267 3270 3488 3520 3597 3630 3872 3924 3960 4320 4356 4360 4752 4796 4840 4905 5232 5280 5445 5808 5886 5940 5995 6336 6534 6540 6976 7194 7260 7744 7848 7920 8640 8712 8720 9504 9592 9680 9810 10464 10560 10791 10890 11616 11772 11880 11881 11990 13068 13080 13189 14388 14520 14715 15696 15840 16335 17424 17440 17985 19008 19184 19360 19620 20928 21582 21780 23232 23544 23760 23762 23980 26136 26160 26378 28776 29040 29430 31392 31680 32373 32670 34848 34880 35643 35970 38368 38720 39240 39567 43164 43560 47088 47520 47524 47960 52272 52320 52756 53955 57552 58080 58860 59405 62784 64746 65340 65945 69696 71286 71940 76736 78480 79134 86328 87120 94176 95040 95048 95920 104544 104640 105512 106929 107910 115104 116160 117720 118701 118810 129492 130680 130691 131890 142572 143880 156960 158268 161865 172656 174240 178215 188352 190096 191840 197835 209088 211024 213858 215820 230208 235440 237402 237620 258984 261360 261382 263780 285144 287760 313920 316536 320787 323730 345312 348480 356103 356430 380192 383680 392073 395670 422048 427716 431640 470880 474804 475240 517968 522720 522764 527560 534645 570288 575520 593505 633072 641574 647460 653455 690624 712206 712860 760384 784146 791340 844096 855432 863280 941760 949608 950480 1035936 1045440 1045528 1055120 1069290 1140576 1151040 1176219 1187010 1266144 1283148 1294920 1306910 1424412 1425720 1437601 1568292 1582680 1603935 1710864 1726560 1780515 1899216 1900960 1960365 2071872 2091056 2110240 2138580 2281152 2352438 2374020 2532288 2566296 2589840 2613820 2848824 2851440 2875202 3136584 3165360 3207870 3421728 3453120 3528657 3561030 3798432 3801920 3920730 4182112 4220480 4277160 4312803 4704876 4748040 5132592 5179680 5227640 5697648 5702880 5750404 5881095 6273168 6330720 6415740 6843456 7057314 7122060 7188005 7596864 7841460 8364224 8554320 8625606 9409752 9496080 10265184 10359360 10455280 11395296 11405760 11500808 11762190 12546336 12661440 12831480 12938409 14114628 14244120 14376010 15682920 17108640 17251212 17643285 18819504 18992160 20530368 20910560 21564015 22790592 23001616 23524380 25092672 25662960 25876818 28229256 28488240 28752020 31365840 34217280 34502424 35286570 37639008 37984320 38815227 41821120 43128030 46003232 47048760 51325920 51753636 56458512 56976480 57504040 62731680 64692045 69004848 70573140 75278016 77630454 86256060 92006464 94097520 102651840 103507272 112917024 113952960 115008080 125463360 129384090 138009696 141146280 155260908 172512120 188195040 194076135 207014544 225834048 230016160 258768180 276019392 282292560 310521816 345024240 376390080 388152270 414029088 460032320 517536360 564585120 621043632 690048480 776304540 828058176 1035072720 1129170240 1242087264 1380096960 1552609080 2070145440 2484174528 3105218160 4140290880 6210436320 12420872640
• Sum of all divisors σ(n): 48609595440
• Sum of proper divisors (its aliquot sum) s(n): 36188722800
• 12420872640 is an abundant number, because the sum of its proper divisors (36188722800) is greater than itself. Its abundance is 23767850160

Bases of 12420872640

• Binary: 1011100100010101110111100111000000₂
• Hexadecimal: 0x2E45779C0
• Base-36: 5PF2EO0

Squares and roots of 12420872640

• 12420872640 squared (12420872640²) is 154278077139100569600
• 12420872640 cubed (12420872640³) is 1916268347288863739153055744000
• The square root of 12420872640 is 111448.9687704647
• The cube root of 12420872640 is 2315.8870250135

Scales and comparisons

• 12,420,872,640 seconds is equal to 394 years, 49 weeks, 1 day, 2 hours, 24 minutes.
• To count from 1 to 12,420,872,640 would take you about seven hundred eighty-nine 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 12420872640 cubic inches would be around 193 feet tall.

Recreational maths with 12420872640

• 12420872640 backwards is 04627802421
• 12420872640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12420872640's digits is 36
• More coming soon!