18621000000

Names of 18621000000

• Cardinal: 18621000000 can be written as Eighteen billion, six hundred twenty-one million.

Scientific notation

• Scientific notation: 1.8621 × 10¹⁰

Factors of 18621000000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 2079

Divisors of 18621000000

• Number of divisors d(n): 294
• 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 64 72 75 80 90 96 100 120 125 144 150 160 180 192 200 225 240 250 288 300 320 360 375 400 450 480 500 576 600 625 720 750 800 900 960 1000 1125 1200 1250 1440 1500 1600 1800 1875 2000 2069 2250 2400 2500 2880 3000 3125 3600 3750 4000 4138 4500 4800 5000 5625 6000 6207 6250 7200 7500 8000 8276 9000 9375 10000 10345 11250 12000 12414 12500 14400 15000 15625 16552 18000 18621 18750 20000 20690 22500 24000 24828 25000 28125 30000 31035 31250 33104 36000 37242 37500 40000 41380 45000 46875 49656 50000 51725 56250 60000 62070 62500 66208 72000 74484 75000 82760 90000 93105 93750 99312 100000 103450 112500 120000 124140 125000 132416 140625 148968 150000 155175 165520 180000 186210 187500 198624 200000 206900 225000 248280 250000 258625 281250 297936 300000 310350 331040 360000 372420 375000 397248 413800 450000 465525 496560 500000 517250 562500 595872 600000 620700 662080 744840 750000 775875 827600 900000 931050 993120 1000000 1034500 1125000 1191744 1241400 1293125 1489680 1500000 1551750 1655200 1800000 1862100 1986240 2069000 2250000 2327625 2482800 2586250 2979360 3000000 3103500 3310400 3724200 3879375 4138000 4500000 4655250 4965600 5172500 5958720 6207000 6465625 7448400 7758750 8276000 9000000 9310500 9931200 10345000 11638125 12414000 12931250 14896800 15517500 16552000 18621000 19396875 20690000 23276250 24828000 25862500 29793600 31035000 32328125 37242000 38793750 41380000 46552500 49656000 51725000 58190625 62070000 64656250 74484000 77587500 82760000 93105000 96984375 103450000 116381250 124140000 129312500 148968000 155175000 186210000 193968750 206900000 232762500 248280000 258625000 290953125 310350000 372420000 387937500 413800000 465525000 517250000 581906250 620700000 744840000 775875000 931050000 1034500000 1163812500 1241400000 1551750000 1862100000 2069000000 2327625000 3103500000 3724200000 4655250000 6207000000 9310500000 18621000000
• Sum of all divisors σ(n): 66748559670
• Sum of proper divisors (its aliquot sum) s(n): 48127559670
• 18621000000 is an abundant number, because the sum of its proper divisors (48127559670) is greater than itself. Its abundance is 29506559670

Bases of 18621000000

• Binary: 10001010101111001011110100101000000₂
• Hexadecimal: 0x455E5E940
• Base-36: 8JYGNK0

Squares and roots of 18621000000

• 18621000000 squared (18621000000²) is 346741641000000000000
• 18621000000 cubed (18621000000³) is 6456676097061000000000000000000
• The square root of 18621000000 is 136458.7849865299
• The cube root of 18621000000 is 2650.5398212013

Scales and comparisons

• 18,621,000,000 seconds is equal to 592 years, 4 weeks, 4 days, 20 hours.
• To count from 1 to 18,621,000,000 would take you about one thousand, one hundred eighty-four 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 18621000000 cubic inches would be around 220.9 feet tall.

Recreational maths with 18621000000

• 18621000000 backwards is 00000012681
• 18621000000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18621000000's digits is 18
• More coming soon!