18001457040

Names of 18001457040

• Cardinal: 18001457040 can be written as Eighteen billion, one million, four hundred fifty-seven thousand and forty.

Scientific notation

• Scientific notation: 1.800145704 × 10¹⁰

Factors of 18001457040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9251

Divisors of 18001457040

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1361 1680 2722 4083 5444 6805 7873 8166 9527 10888 13610 15746 16332 19054 20415 21776 23619 27220 28581 31492 32664 38108 39365 40830 47238 47635 54440 55111 57162 62984 65328 76216 78730 81660 94476 95270 108880 110222 114324 118095 125968 142905 152432 157460 163320 165333 188952 190540 220444 228648 236190 275555 285810 314920 326640 330666 377904 381080 440888 457296 472380 551110 571620 629840 661332 762160 826665 881776 944760 1102220 1143240 1322664 1653330 1889520 2204440 2286480 2645328 3306660 4408880 6613320 10715153 13226640 21430306 32145459 42860612 53575765 64290918 75006071 85721224 107151530 128581836 150012142 160727295 171442448 214303060 225018213 257163672 300024284 321454590 375030355 428606120 450036426 514327344 600048568 642909180 750060710 857212240 900072852 1125091065 1200097136 1285818360 1500121420 1800145704 2250182130 2571636720 3000242840 3600291408 4500364260 6000485680 9000728520 18001457040
• Sum of all divisors σ(n): 63831557376
• Sum of proper divisors (its aliquot sum) s(n): 45830100336
• 18001457040 is an abundant number, because the sum of its proper divisors (45830100336) is greater than itself. Its abundance is 27828643296

Bases of 18001457040

• Binary: 10000110000111110000110111110010000₂
• Hexadecimal: 0x430F86F90
• Base-36: 89PLP5C

Squares and roots of 18001457040

• 18001457040 squared (18001457040²) is 324052455562965561600
• 18001457040 cubed (18001457040³) is 5833416357523233572141873664000
• The square root of 18001457040 is 134169.5086075819
• The cube root of 18001457040 is 2620.8121057277

Scales and comparisons

• 18,001,457,040 seconds is equal to 572 years, 20 weeks, 2 days, 4 hours, 44 minutes.
• To count from 1 to 18,001,457,040 would take you about one thousand, one hundred forty-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 18001457040 cubic inches would be around 218.4 feet tall.

Recreational maths with 18001457040

• 18001457040 backwards is 04075410081
• 18001457040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18001457040's digits is 30
• More coming soon!