138984282878

Names of 138984282878

• Cardinal: 138984282878 can be written as One hundred thirty-eight billion, nine hundred eighty-four million, two hundred eighty-two thousand, eight hundred seventy-eight.

Scientific notation

• Scientific notation: 1.38984282878 × 10¹¹

Factors of 138984282878

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 582

Divisors of 138984282878

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 7 14 41 73 82 113 146 149 197 226 287 298 394 511 574 791 1022 1043 1379 1582 2086 2758 2993 4633 5986 6109 8077 8249 9266 10877 12218 14381 16154 16498 16837 20951 21754 22261 28762 29353 32431 33674 41902 42763 44522 56539 57743 58706 64862 76139 85526 100667 113078 115486 117859 152278 155827 201334 205471 235718 311654 338209 410942 445957 589621 676418 690317 891914 912701 1179242 1203473 1229101 1380634 1625053 1825402 2142769 2367463 2406946 2458202 3121699 3250106 3316889 4127347 4285538 4734926 4832219 6243398 6388907 6633778 8254694 8424311 8603707 9664438 11375371 12777814 14999383 16848622 17207414 22750742 23218223 29998766 46436446 50393141 66627173 87853529 100786282 133254346 135992449 175707058 242132897 271984898 352751987 466390211 484265794 614974703 705503974 932780422 951947143 1229949406 1694930279 1903894286 3389860558 9927448777 19854897554 69492141439 138984282878
• Sum of all divisors σ(n): 252553593600
• Sum of proper divisors (its aliquot sum) s(n): 113569310722
• 138984282878 is a deficient number, because the sum of its proper divisors (113569310722) is less than itself. Its deficiency is 25414972156

Bases of 138984282878

• Binary: 10000001011100000110111101101011111110₂
• Hexadecimal: 0x205C1BDAFE
• Base-36: 1RUJNJ0E

Squares and roots of 138984282878

• 138984282878 squared (138984282878²) is 19316630887111923962884
• 138984282878 cubed (138984282878³) is 2684708091464275724504296628700152
• The square root of 138984282878 is 372805.9587479793
• The cube root of 138984282878 is 5179.9062171271

Scales and comparisons

• 138,984,282,878 seconds is equal to 4,419 years, 14 weeks, 9 hours, 14 minutes, 38 seconds.
• To count from 1 to 138,984,282,878 would take you about eight thousand, eight hundred thirty-eight 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 138984282878 cubic inches would be around 431.7 feet tall.

Recreational maths with 138984282878

• 138984282878 backwards is 878282489831
• The number of decimal digits it has is: 12
• The sum of 138984282878's digits is 68
• More coming soon!