138978000315

Names of 138978000315

• Cardinal: 138978000315 can be written as One hundred thirty-eight billion, nine hundred seventy-eight million, three hundred fifteen.

Scientific notation

• Scientific notation: 1.38978000315 × 10¹¹

Factors of 138978000315

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3334

Divisors of 138978000315

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 5 7 9 11 15 21 27 33 35 45 55 63 77 99 105 121 135 165 189 231 297 315 363 385 421 495 605 693 847 945 1089 1155 1263 1485 1815 2079 2105 2541 2887 2947 3267 3465 3789 4235 4631 5445 6315 7623 8661 8841 10395 11367 12705 13893 14435 14735 16335 18945 20209 22869 23155 25983 26523 31757 32417 38115 41679 43305 44205 50941 56835 60627 69465 77949 79569 95271 97251 101045 114345 125037 129915 132615 152823 158785 162085 181881 208395 222299 254705 285813 291753 303135 349327 356587 389745 397845 458469 476355 486255 545643 625185 666897 764115 857439 875259 909405 1047981 1069761 1111495 1215427 1375407 1429065 1458765 1746635 1782935 2000691 2292345 2445289 2728215 3143943 3209283 3334485 3646281 4287195 4376295 5239905 5348805 6002073 6077135 6877035 7335867 8507989 9431829 9627849 10003455 10938843 12226445 13369697 15719715 16046415 18231405 22007601 25523967 30010365 32816529 36679335 40109091 42539945 47159145 48139245 54694215 66022803 66848485 76571901 93587879 110038005 120327273 127619835 147066667 164082645 200545455 229715703 280763637 330114015 360981819 382859505 441200001 467939395 601636365 735333335 842290911 1029466669 1148578515 1323600003 1403818185 1804909095 2206000005 2526872733 3088400007 3970800009 4211454555 5147333345 6618000015 9265200021 12634363665 15442000035 19854000045 27795600063 46326000105 138978000315
• Sum of all divisors σ(n): 311216424960
• Sum of proper divisors (its aliquot sum) s(n): 172238424645
• 138978000315 is an abundant number, because the sum of its proper divisors (172238424645) is greater than itself. Its abundance is 33260424330

Bases of 138978000315

• Binary: 10000001011011101110111111110110111011₂
• Hexadecimal: 0x205BBBFDBB
• Base-36: 1RUFWVCR

Squares and roots of 138978000315

• 138978000315 squared (138978000315²) is 19314884571556140099225
• 138978000315 cubed (138978000315³) is 2684344034069917878750276181255875
• The square root of 138978000315 is 372797.5326031545
• The cube root of 138978000315 is 5179.8281661493

Scales and comparisons

• 138,978,000,315 seconds is equal to 4,419 years, 3 weeks, 4 days, 16 hours, 5 minutes, 15 seconds.
• To count from 1 to 138,978,000,315 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 138978000315 cubic inches would be around 431.7 feet tall.

Recreational maths with 138978000315

• 138978000315 backwards is 513000879831
• 138978000315 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138978000315's digits is 45
• More coming soon!