18120537450

Names of 18120537450

• Cardinal: 18120537450 can be written as Eighteen billion, one hundred twenty million, five hundred thirty-seven thousand, four hundred fifty.

Scientific notation

• Scientific notation: 1.812053745 × 10¹⁰

Factors of 18120537450

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 18286

Divisors of 18120537450

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 25 30 45 47 50 75 90 94 141 150 225 235 282 423 450 470 705 846 1175 1410 2115 2209 2350 3525 4230 4418 6627 7050 10575 11045 13254 18229 19881 21150 22090 33135 36458 39762 54687 55225 66270 91145 99405 109374 110450 164061 165675 182290 198810 273435 328122 331350 455725 497025 546870 820305 856763 911450 994050 1367175 1640610 1713526 2570289 2734350 4101525 4283815 5140578 7710867 8203050 8567630 12851445 15421734 21419075 25702890 38554335 40267861 42838150 64257225 77108670 80535722 120803583 128514450 192771675 201339305 241607166 362410749 385543350 402678610 604017915 724821498 1006696525 1208035830 1812053745 2013393050 3020089575 3624107490 6040179150 9060268725 18120537450
• Sum of all divisors σ(n): 49744437990
• Sum of proper divisors (its aliquot sum) s(n): 31623900540
• 18120537450 is an abundant number, because the sum of its proper divisors (31623900540) is greater than itself. Its abundance is 13503363090

Bases of 18120537450

• Binary: 10000111000000100010111010101101010₂
• Hexadecimal: 0x43811756A
• Base-36: 8BOI06I

Squares and roots of 18120537450

• 18120537450 squared (18120537450²) is 328353877476852502500
• 18120537450 cubed (18120537450³) is 5949948733672017279677468625000
• The square root of 18120537450 is 134612.5456634709
• The cube root of 18120537450 is 2626.5783378749

Scales and comparisons

• 18,120,537,450 seconds is equal to 576 years, 9 weeks, 1 day, 10 hours, 37 minutes, 30 seconds.
• To count from 1 to 18,120,537,450 would take you about one thousand, one hundred fifty-two 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 18120537450 cubic inches would be around 218.9 feet tall.

Recreational maths with 18120537450

• 18120537450 backwards is 05473502181
• The number of decimal digits it has is: 11
• The sum of 18120537450's digits is 36
• More coming soon!