1218945168

Names of 1218945168

• Cardinal: 1218945168 can be written as One billion, two hundred eighteen million, nine hundred forty-five thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 1.218945168 × 10⁹

Factors of 1218945168

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 101

Divisors of 1218945168

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 23 24 28 29 36 37 42 46 48 49 56 58 63 69 72 74 84 87 92 98 111 112 116 126 138 144 147 148 161 168 174 184 196 203 207 222 232 252 259 261 276 294 296 322 333 336 343 348 368 392 406 414 441 444 464 483 504 518 522 552 588 592 609 644 666 667 686 696 777 784 812 828 851 882 888 966 1008 1029 1036 1044 1073 1104 1127 1176 1218 1288 1332 1334 1372 1392 1421 1449 1554 1624 1656 1702 1764 1776 1813 1827 1932 2001 2058 2072 2088 2146 2254 2331 2352 2436 2553 2576 2664 2668 2744 2842 2898 3087 3108 3219 3248 3312 3381 3404 3528 3626 3654 3864 4002 4116 4144 4176 4263 4292 4508 4662 4669 4872 5106 5328 5336 5439 5488 5684 5796 5957 6003 6174 6216 6438 6762 6808 7056 7252 7308 7511 7659 7728 7889 8004 8232 8526 8584 9016 9324 9338 9657 9744 9947 10143 10212 10672 10878 11368 11592 11914 12006 12348 12432 12691 12789 12876 13524 13616 14007 14504 14616 15022 15318 15778 16008 16317 16464 17052 17168 17871 18032 18648 18676 19314 19894 20286 20424 21756 22533 22736 23184 23667 23828 24012 24679 24696 25382 25578 25752 27048 28014 29008 29232 29841 30044 30636 31556 32016 32634 32683 34104 35742 37296 37352 38073 38628 39788 40572 40848 41699 42021 43512 45066 47334 47656 48024 49358 49392 50764 51156 51504 52577 53613 54096 56028 59682 60088 61272 63112 65268 65366 67599 68208 71001 71484 74037 74704 76146 77256 79576 81144 83398 84042 87024 89523 90132 94668 95312 96048 98049 98716 101528 102312 105154 107226 112056 114219 119364 120176 122544 125097 126224 130536 130732 135198 142002 142968 148074 152292 154512 157731 159152 162288 166796 168084 172753 179046 180264 189336 196098 197432 203056 204624 210308 214452 222111 224112 228438 228781 238728 250194 261072 261464 270396 284004 285936 291893 294147 296148 304584 315462 333592 336168 345506 358092 360528 368039 375291 378672 392196 394864 420616 428904 444222 456876 457562 473193 477456 500388 518259 522928 540792 568008 583786 588294 592296 609168 630924 667184 672336 686343 691012 716184 736078 750582 784392 841232 857808 875679 888444 913752 915124 946386 1000776 1036518 1081584 1104117 1136016 1167572 1176588 1184592 1209271 1261848 1372686 1382024 1432368 1472156 1501164 1554777 1568784 1751358 1776888 1827504 1830248 1892772 2001552 2059029 2073036 2208234 2335144 2353176 2418542 2523696 2627037 2745372 2764048 2944312 3002328 3109554 3312351 3502716 3553776 3627813 3660496 3785544 4118058 4146072 4416468 4670288 4706352 4837084 5254074 5490744 5888624 6004656 6219108 6624702 7005432 7255626 7571088 8236116 8292144 8464897 8832936 9674168 10508148 10883439 10981488 12438216 13249404 14010864 14511252 16472232 16929794 17665872 19348336 21016296 21766878 24876432 25394691 26498808 29022504 32944464 33859588 42032592 43533756 50789382 52997616 58045008 67719176 76184073 87067512 101578764 135438352 152368146 174135024 203157528 304736292 406315056 609472584 1218945168
• Sum of all divisors σ(n): 4410432000
• Sum of proper divisors (its aliquot sum) s(n): 3191486832
• 1218945168 is an abundant number, because the sum of its proper divisors (3191486832) is greater than itself. Its abundance is 1972541664

Bases of 1218945168

• Binary: 1001000101001111010000010010000₂
• Hexadecimal: 0x48A7A090
• Base-36: K5Q840

Squares and roots of 1218945168

• 1218945168 squared (1218945168²) is 1485827322590548224
• 1218945168 cubed (1218945168³) is 1811142035354126000115781632
• The square root of 1218945168 is 34913.3952516795
• The cube root of 1218945168 is 1068.2216852443

Scales and comparisons

• 1,218,945,168 seconds is equal to 38 years, 39 weeks, 3 days, 3 hours, 52 minutes, 48 seconds.
• To count from 1 to 1,218,945,168 would take you about seventy-seven 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 1218945168 cubic inches would be around 89 feet tall.

Recreational maths with 1218945168

• 1218945168 backwards is 8615498121
• The number of decimal digits it has is: 10
• The sum of 1218945168's digits is 45
• More coming soon!