138662718390

Names of 138662718390

• Cardinal: 138662718390 can be written as One hundred thirty-eight billion, six hundred sixty-two million, seven hundred eighteen thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.3866271839 × 10¹¹

Factors of 138662718390

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 9288

Divisors of 138662718390

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 19 21 30 35 38 42 45 57 63 70 90 95 105 114 126 133 171 190 210 266 285 315 342 399 570 630 665 798 855 1197 1330 1493 1710 1995 2394 2986 3990 4479 5985 7465 7759 8958 10451 11970 13437 14930 15518 20902 22395 23277 26874 28367 31353 38795 44790 46554 52255 54313 56734 62706 67185 69831 77590 85101 94059 104510 108626 116385 134370 139662 141835 147421 156765 162939 170202 188118 198569 232770 255303 271565 283670 294842 313530 325878 349155 397138 425505 442263 470295 488817 510606 543130 595707 698310 737105 814695 851010 884526 940590 977634 992845 1031947 1191414 1276515 1326789 1474210 1629390 1787121 1985690 2063894 2211315 2444085 2553030 2653578 2978535 3095841 3574242 4422630 4888170 5159735 5957070 6191682 6633945 8935605 9287523 10319470 11584187 13267890 15479205 17871210 18575046 23168374 30958410 34752561 46437615 57920935 69505122 81089309 92875230 104257683 115841870 162178618 173762805 208515366 220099553 243267927 347525610 405446545 440199106 486535854 521288415 660298659 729803781 810893090 1042576830 1100497765 1216339635 1320597318 1459607562 1540696871 1980895977 2200995530 2432679270 3081393742 3301493295 3649018905 3961791954 4622090613 6602986590 7298037810 7703484355 9244181226 9904479885 13866271839 15406968710 19808959770 23110453065 27732543678 46220906130 69331359195 138662718390
• Sum of all divisors σ(n): 434058393600
• Sum of proper divisors (its aliquot sum) s(n): 295395675210
• 138662718390 is an abundant number, because the sum of its proper divisors (295395675210) is greater than itself. Its abundance is 156732956820

Bases of 138662718390

• Binary: 10000001001000111100010010101110110110₂
• Hexadecimal: 0x2048F12BB6
• Base-36: 1RP87A9I

Squares and roots of 138662718390

• 138662718390 squared (138662718390²) is 19227349471304444192100
• 138662718390 cubed (138662718390³) is 2666116545125603530964633362719000
• The square root of 138662718390 is 372374.4330509279
• The cube root of 138662718390 is 5175.9082587027

Scales and comparisons

• 138,662,718,390 seconds is equal to 4,409 years, 2 weeks, 2 days, 13 hours, 46 minutes, 30 seconds.
• To count from 1 to 138,662,718,390 would take you about eight thousand, eight hundred eighteen 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 138662718390 cubic inches would be around 431.3 feet tall.

Recreational maths with 138662718390

• 138662718390 backwards is 093817266831
• The number of decimal digits it has is: 12
• The sum of 138662718390's digits is 54
• More coming soon!