12845721600

Names of 12845721600

• Cardinal: 12845721600 can be written as Twelve billion, eight hundred forty-five million, seven hundred twenty-one thousand, six hundred.

Scientific notation

• Scientific notation: 1.28457216 × 10¹⁰

Factors of 12845721600

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 528

Divisors of 12845721600

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 61 64 72 75 80 90 96 100 120 122 128 144 150 160 180 183 192 200 225 240 244 256 288 300 305 320 360 366 384 400 450 457 480 488 512 549 576 600 610 640 720 732 768 800 900 914 915 960 976 1024 1098 1152 1200 1220 1280 1371 1440 1464 1525 1536 1600 1800 1828 1830 1920 1952 2048 2196 2285 2304 2400 2440 2560 2742 2745 2880 2928 3050 3072 3200 3600 3656 3660 3840 3904 4113 4392 4570 4575 4608 4800 4880 5120 5484 5490 5760 5856 6100 6144 6400 6855 7200 7312 7320 7680 7808 8226 8784 9140 9150 9216 9600 9760 10240 10968 10980 11425 11520 11712 12200 12800 13710 13725 14400 14624 14640 15360 15616 16452 17568 18280 18300 18432 19200 19520 20565 21936 21960 22850 23040 23424 24400 25600 27420 27450 27877 28800 29248 29280 30720 31232 32904 34275 35136 36560 36600 38400 39040 41130 43872 43920 45700 46080 46848 48800 51200 54840 54900 55754 57600 58496 58560 62464 65808 68550 70272 73120 73200 76800 78080 82260 83631 87744 87840 91400 92160 93696 97600 102825 109680 109800 111508 115200 116992 117120 124928 131616 137100 139385 140544 146240 146400 153600 156160 164520 167262 175488 175680 182800 187392 195200 205650 219360 219600 223016 230400 233984 234240 250893 263232 274200 278770 281088 292480 292800 312320 329040 334524 350976 351360 365600 374784 390400 411300 418155 438720 439200 446032 460800 467968 468480 501786 526464 548400 557540 562176 584960 585600 624640 658080 669048 696925 701952 702720 731200 780800 822600 836310 877440 878400 892064 935936 936960 1003572 1052928 1096800 1115080 1124352 1169920 1171200 1254465 1316160 1338096 1393850 1403904 1405440 1462400 1561600 1645200 1672620 1754880 1756800 1784128 1873920 2007144 2090775 2105856 2193600 2230160 2339840 2342400 2508930 2632320 2676192 2787700 2807808 2810880 2924800 3123200 3290400 3345240 3509760 3513600 3568256 4014288 4181550 4211712 4387200 4460320 4679680 4684800 5017860 5264640 5352384 5575400 5621760 5849600 6272325 6580800 6690480 7019520 7027200 7136512 8028576 8363100 8423424 8774400 8920640 9369600 10035720 10529280 10704768 11150800 11699200 12544650 13161600 13380960 14039040 14054400 14273024 16057152 16726200 17548800 17841280 20071440 21058560 21409536 22301600 23398400 25089300 26323200 26761920 28108800 28546048 32114304 33452400 35097600 35682560 40142880 42117120 42819072 44603200 50178600 52646400 53523840 57092096 64228608 66904800 70195200 71365120 80285760 85638144 89206400 100357200 105292800 107047680 128457216 133809600 142730240 160571520 171276288 178412800 200714400 210585600 214095360 256914432 267619200 285460480 321143040 356825600 401428800 428190720 513828864 535238400 642286080 713651200 802857600 856381440 1070476800 1284572160 1427302400 1605715200 2140953600 2569144320 3211430400 4281907200 6422860800 12845721600
• Sum of all divisors σ(n): 46861492860
• Sum of proper divisors (its aliquot sum) s(n): 34015771260
• 12845721600 is an abundant number, because the sum of its proper divisors (34015771260) is greater than itself. Its abundance is 21170049660

Bases of 12845721600

• Binary: 1011111101101010100010100000000000₂
• Hexadecimal: 0x2FDAA2800
• Base-36: 5WG0E80

Squares and roots of 12845721600

• 12845721600 squared (12845721600²) is 165012563424706560000
• 12845721600 cubed (12845721600³) is 2119705450256123031453696000000
• The square root of 12845721600 is 113338.9677030809
• The cube root of 12845721600 is 2341.9961052247

Scales and comparisons

• 12,845,721,600 seconds is equal to 408 years, 23 weeks, 4 days, 8 hours.
• To count from 1 to 12,845,721,600 would take you about eight hundred sixteen 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 12845721600 cubic inches would be around 195.2 feet tall.

Recreational maths with 12845721600

• 12845721600 backwards is 00612754821
• 12845721600 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12845721600's digits is 36
• More coming soon!