18189921960

Names of 18189921960

• Cardinal: 18189921960 can be written as Eighteen billion, one hundred eighty-nine million, nine hundred twenty-one thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 1.818992196 × 10¹⁰

Factors of 18189921960

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 13401

Divisors of 18189921960

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 56 60 63 70 72 84 90 105 120 126 140 168 180 210 252 280 315 360 420 504 563 630 840 1126 1260 1689 2252 2520 2815 3378 3941 4504 5067 5630 6756 7882 8445 10134 11260 11823 12821 13512 15764 16890 19705 20268 22520 23646 25335 25642 31528 33780 35469 38463 39410 40536 47292 50670 51284 59115 64105 67560 70938 76926 78820 89747 94584 101340 102568 115389 118230 128210 141876 153852 157640 177345 179494 192315 202680 230778 236460 256420 269241 283752 307704 354690 358988 384630 448735 461556 472920 512840 538482 576945 709380 717976 769260 807723 897470 923112 1076964 1153890 1346205 1418760 1538520 1615446 1794940 2153928 2307780 2692410 3230892 3589880 4038615 4615560 5384820 6461784 7218223 8077230 10769640 14436446 16154460 21654669 28872892 32308920 36091115 43309338 50527561 57745784 64964007 72182230 86618676 101055122 108273345 129928014 144364460 151582683 173237352 202110244 216546690 252637805 259856028 288728920 303165366 324820035 404220488 433093380 454748049 505275610 519712056 606330732 649640070 757913415 866186760 909496098 1010551220 1212661464 1299280140 1515826830 1818992196 2021102440 2273740245 2598560280 3031653660 3637984392 4547480490 6063307320 9094960980 18189921960
• Sum of all divisors σ(n): 67687850880
• Sum of proper divisors (its aliquot sum) s(n): 49497928920
• 18189921960 is an abundant number, because the sum of its proper divisors (49497928920) is greater than itself. Its abundance is 31308006960

Bases of 18189921960

• Binary: 10000111100001101000010111010101000₂
• Hexadecimal: 0x43C342EA8
• Base-36: 8CTT5M0

Squares and roots of 18189921960

• 18189921960 squared (18189921960²) is 330873260910890241600
• 18189921960 cubed (18189921960³) is 6018558794619812008829545536000
• The square root of 18189921960 is 134870.0187588031
• The cube root of 18189921960 is 2629.9265045219

Scales and comparisons

• 18,189,921,960 seconds is equal to 578 years, 19 weeks, 6 days, 12 hours, 6 minutes.
• To count from 1 to 18,189,921,960 would take you about one thousand, one hundred fifty-six 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 18189921960 cubic inches would be around 219.2 feet tall.

Recreational maths with 18189921960

• 18189921960 backwards is 06912998181
• The number of decimal digits it has is: 11
• The sum of 18189921960's digits is 54
• More coming soon!