18902918144

Names of 18902918144

• Cardinal: 18902918144 can be written as Eighteen billion, nine hundred two million, nine hundred eighteen thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 1.8902918144 × 10¹⁰

Factors of 18902918144

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 115

Divisors of 18902918144

• Number of divisors d(n): 198
• Complete list of divisors:
  1 2 4 8 11 16 22 32 41 44 61 64 82 88 121 122 128 164 176 242 244 256 328 352 451 484 488 512 656 671 704 902 968 976 1024 1312 1342 1408 1804 1936 1952 2501 2624 2684 2816 3608 3721 3872 3904 4961 5002 5248 5368 5632 7216 7381 7442 7744 7808 9922 10004 10496 10736 11264 14432 14762 14884 15488 15616 19844 20008 20992 21472 27511 28864 29524 29768 30976 31232 39688 40016 40931 41984 42944 55022 57728 59048 59536 61952 62464 79376 80032 81862 85888 110044 115456 118096 119072 123904 152561 158752 160064 163724 171776 220088 230912 236192 238144 302621 305122 317504 320128 327448 343552 440176 450241 461824 472384 476288 605242 610244 635008 640256 654896 687104 880352 900482 944768 952576 1210484 1220488 1270016 1280512 1309792 1678171 1760704 1800964 1889536 1905152 2420968 2440976 2540032 2561024 2619584 3356342 3521408 3601928 3779072 3810304 4841936 4881952 5080064 5239168 6712684 7042816 7203856 7558144 9683872 9763904 10478336 13425368 14085632 14407712 18459881 19367744 19527808 20956672 26850736 28171264 28815424 36919762 38735488 39055616 41913344 53701472 57630848 73839524 77470976 78111232 107402944 115261696 147679048 154941952 156222464 214805888 230523392 295358096 309883904 429611776 461046784 590716192 859223552 1181432384 1718447104 2362864768 4725729536 9451459072 18902918144
• Sum of all divisors σ(n): 43256872386
• Sum of proper divisors (its aliquot sum) s(n): 24353954242
• 18902918144 is an abundant number, because the sum of its proper divisors (24353954242) is greater than itself. Its abundance is 5451036098

Bases of 18902918144

• Binary: 10001100110101100111010010000000000₂
• Hexadecimal: 0x466B3A400
• Base-36: 8OMB4ZK

Squares and roots of 18902918144

• 18902918144 squared (18902918144²) is 357320314358764404736
• 18902918144 cubed (18902918144³) is 6754396653512071391705493929984
• The square root of 18902918144 is 137487.8836261581
• The cube root of 18902918144 is 2663.8490897991

Scales and comparisons

• 18,902,918,144 seconds is equal to 601 years, 2 weeks, 5 days, 18 hours, 35 minutes, 44 seconds.
• To count from 1 to 18,902,918,144 would take you about one thousand, two hundred 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 18902918144 cubic inches would be around 222 feet tall.

Recreational maths with 18902918144

• 18902918144 backwards is 44181920981
• The number of decimal digits it has is: 11
• The sum of 18902918144's digits is 47
• More coming soon!