18011152640

Names of 18011152640

• Cardinal: 18011152640 can be written as Eighteen billion, eleven million, one hundred fifty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.801115264 × 10¹⁰

Factors of 18011152640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2422

Divisors of 18011152640

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 256 260 320 416 520 601 640 832 1040 1202 1280 1664 1801 2080 2404 3005 3328 3602 4160 4808 6010 7204 7813 8320 9005 9616 12020 14408 15626 16640 18010 19232 23413 24040 28816 31252 36020 38464 39065 46826 48080 57632 62504 72040 76928 78130 93652 96160 115264 117065 125008 144080 153856 156260 187304 192320 230528 234130 250016 288160 312520 374608 384640 461056 468260 500032 576320 625040 749216 769280 936520 1000064 1082401 1152640 1250080 1498432 1873040 2000128 2164802 2305280 2500160 2996864 3746080 4329604 5000320 5412005 5993728 7492160 8659208 10000640 10824010 14071213 14984320 17318416 21648020 28142426 29968640 34636832 43296040 56284852 69273664 70356065 86592080 112569704 138547328 140712130 173184160 225139408 277094656 281424260 346368320 450278816 562848520 692736640 900557632 1125697040 1385473280 1801115264 2251394080 3602230528 4502788160 9005576320 18011152640
• Sum of all divisors σ(n): 46564126896
• Sum of proper divisors (its aliquot sum) s(n): 28552974256
• 18011152640 is an abundant number, because the sum of its proper divisors (28552974256) is greater than itself. Its abundance is 10541821616

Bases of 18011152640

• Binary: 10000110001100011000110000100000000₂
• Hexadecimal: 0x4318C6100
• Base-36: 89VDIBK

Squares and roots of 18011152640

• 18011152640 squared (18011152640²) is 324401619421378969600
• 18011152640 cubed (18011152640³) is 5842847084061645100751519744000
• The square root of 18011152640 is 134205.6356491783
• The cube root of 18011152640 is 2621.2825451509

Scales and comparisons

• 18,011,152,640 seconds is equal to 572 years, 36 weeks, 2 days, 9 hours, 57 minutes, 20 seconds.
• To count from 1 to 18,011,152,640 would take you about one thousand, one hundred forty-five 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 18011152640 cubic inches would be around 218.4 feet tall.

Recreational maths with 18011152640

• 18011152640 backwards is 04625111081
• The number of decimal digits it has is: 11
• The sum of 18011152640's digits is 29
• More coming soon!