18391300992

Names of 18391300992

• Cardinal: 18391300992 can be written as Eighteen billion, three hundred ninety-one million, three hundred thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.8391300992 × 10¹⁰

Factors of 18391300992

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 12783

Divisors of 18391300992

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 288 384 431 432 576 862 864 1152 1293 1724 1728 2586 3448 3456 3879 5172 6896 7758 10344 11637 12347 13792 15516 20688 23274 24694 27584 31032 37041 41376 46548 49388 55168 62064 74082 82752 93096 98776 111123 124128 148164 165504 186192 197552 222246 248256 296328 333369 372384 395104 444492 496512 592656 666738 744768 790208 888984 1185312 1333476 1489536 1580416 1777968 2370624 2666952 3555936 4741248 5321557 5333904 7111872 10643114 10667808 14223744 15964671 21286228 21335616 31929342 42572456 42671232 47894013 63858684 85144912 95788026 127717368 143682039 170289824 191576052 255434736 287364078 340579648 383152104 510869472 574728156 681159296 766304208 1021738944 1149456312 1532608416 2043477888 2298912624 3065216832 4597825248 6130433664 9195650496 18391300992
• Sum of all divisors σ(n): 54410227200
• Sum of proper divisors (its aliquot sum) s(n): 36018926208
• 18391300992 is an abundant number, because the sum of its proper divisors (36018926208) is greater than itself. Its abundance is 17627625216

Bases of 18391300992

• Binary: 10001001000001101001111101110000000₂
• Hexadecimal: 0x44834FB80
• Base-36: 8G5PEO0

Squares and roots of 18391300992

• 18391300992 squared (18391300992²) is 338239952178340184064
• 18391300992 cubed (18391300992³) is 6220672768031540388089705791488
• The square root of 18391300992 is 135614.5309028497
• The cube root of 18391300992 is 2639.5961365679

Scales and comparisons

• 18,391,300,992 seconds is equal to 584 years, 40 weeks, 6 days, 6 hours, 43 minutes, 12 seconds.
• To count from 1 to 18,391,300,992 would take you about one thousand, one hundred sixty-nine 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 18391300992 cubic inches would be around 220 feet tall.

Recreational maths with 18391300992

• 18391300992 backwards is 29900319381
• The number of decimal digits it has is: 11
• The sum of 18391300992's digits is 45
• More coming soon!