18731140407

Names of 18731140407

• Cardinal: 18731140407 can be written as Eighteen billion, seven hundred thirty-one million, one hundred forty thousand, four hundred seven.

Scientific notation

• Scientific notation: 1.8731140407 × 10¹⁰

Factors of 18731140407

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 547

Divisors of 18731140407

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 7 9 21 23 27 63 69 81 161 189 197 207 317 483 529 567 591 621 951 1379 1449 1587 1773 1863 2219 2853 3703 4137 4347 4531 4761 5319 6657 7291 8559 11109 12411 13041 13593 14283 15957 19971 21873 25677 31717 33327 37233 40779 42849 51037 59913 62449 65619 95151 99981 104213 111699 122337 153111 167693 179739 187347 196857 285453 299943 312639 367011 437143 459333 503079 562041 590571 729491 856359 937917 1173851 1311429 1377999 1436327 1509237 1686123 2188473 2569077 2813751 3521553 3934287 4133997 4308981 4527711 5058369 6565419 8441253 10054289 10564659 11802861 12926943 13583133 19696257 30162867 31693977 33035521 35408583 38780829 59088771 90488601 95081931 99106563 116342487 231248647 271465803 297319689 693745941 814397409 891959067 2081237823 2675877201 6243713469 18731140407
• Sum of all divisors σ(n): 33704881056
• Sum of proper divisors (its aliquot sum) s(n): 14973740649
• 18731140407 is a deficient number, because the sum of its proper divisors (14973740649) is less than itself. Its deficiency is 3757399758

Bases of 18731140407

• Binary: 10001011100011101101000010100110111₂
• Hexadecimal: 0x45C768537
• Base-36: 8LS1CFR

Squares and roots of 18731140407

• 18731140407 squared (18731140407²) is 350855620946748125649
• 18731140407 cubed (18731140407³) is 6571925898538709411595496999143
• The square root of 18731140407 is 136861.7565538305
• The cube root of 18731140407 is 2655.7553993409

Scales and comparisons

• 18,731,140,407 seconds is equal to 595 years, 30 weeks, 5 days, 14 hours, 33 minutes, 27 seconds.
• To count from 1 to 18,731,140,407 would take you about one thousand, one hundred ninety-one 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 18731140407 cubic inches would be around 221.3 feet tall.

Recreational maths with 18731140407

• 18731140407 backwards is 70404113781
• The number of decimal digits it has is: 11
• The sum of 18731140407's digits is 36
• More coming soon!