1218131200

Names of 1218131200

• Cardinal: 1218131200 can be written as One billion, two hundred eighteen million, one hundred thirty-one thousand, two hundred.

Scientific notation

• Scientific notation: 1.2181312 × 10⁹

Factors of 1218131200

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 31

Divisors of 1218131200

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 25 26 32 40 44 50 52 55 64 65 80 88 100 104 110 121 128 130 143 160 176 200 208 220 242 256 260 275 286 320 325 352 400 416 440 484 520 550 572 605 640 650 704 715 800 832 880 968 1040 1100 1144 1210 1280 1300 1331 1408 1430 1573 1600 1664 1760 1936 2080 2200 2288 2420 2600 2662 2816 2860 3025 3146 3200 3328 3520 3575 3872 4160 4400 4576 4840 5200 5324 5720 6050 6292 6400 6655 7040 7150 7744 7865 8320 8800 9152 9680 10400 10648 11440 12100 12584 13310 14080 14300 14641 15488 15730 16640 17303 17600 18304 19360 20800 21296 22880 24200 25168 26620 28600 29282 30976 31460 33275 34606 35200 36608 38720 39325 41600 42592 45760 48400 50336 53240 57200 58564 62920 66550 69212 70400 73205 77440 78650 83200 85184 86515 91520 96800 100672 106480 114400 117128 125840 133100 138424 146410 154880 157300 170368 173030 183040 190333 193600 201344 212960 228800 234256 251680 266200 276848 292820 314600 340736 346060 366025 380666 387200 402688 425920 432575 457600 468512 503360 532400 553696 585640 629200 692120 732050 761332 774400 851840 865150 915200 937024 951665 1006720 1064800 1107392 1171280 1258400 1384240 1464100 1522664 1703680 1730300 1874048 1903330 2013440 2129600 2214784 2342560 2516800 2768480 2928200 3045328 3460600 3748096 3806660 4259200 4429568 4685120 4758325 5033600 5536960 5856400 6090656 6921200 7613320 8518400 9370240 9516650 10067200 11073920 11712800 12181312 13842400 15226640 18740480 19033300 22147840 23425600 24362624 27684800 30453280 38066600 46851200 48725248 55369600 60906560 76133200 93702400 110739200 121813120 152266400 243626240 304532800 609065600 1218131200
• Sum of all divisors σ(n): 3571670270
• Sum of proper divisors (its aliquot sum) s(n): 2353539070
• 1218131200 is an abundant number, because the sum of its proper divisors (2353539070) is greater than itself. Its abundance is 1135407870

Bases of 1218131200

• Binary: 1001000100110110011010100000000₂
• Hexadecimal: 0x489B3500
• Base-36: K58S1S

Squares and roots of 1218131200

• 1218131200 squared (1218131200²) is 1483843620413440000
• 1218131200 cubed (1218131200³) is 1807516209946568163328000000
• The square root of 1218131200 is 34901.7363464915
• The cube root of 1218131200 is 1067.9838588837

Scales and comparisons

• 1,218,131,200 seconds is equal to 38 years, 38 weeks, 17 hours, 46 minutes, 40 seconds.
• To count from 1 to 1,218,131,200 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 1218131200 cubic inches would be around 89 feet tall.

Recreational maths with 1218131200

• 1218131200 backwards is 0021318121
• The number of decimal digits it has is: 10
• The sum of 1218131200's digits is 19
• More coming soon!