138972881250

Names of 138972881250

• Cardinal: 138972881250 can be written as One hundred thirty-eight billion, nine hundred seventy-two million, eight hundred eighty-one thousand, two hundred fifty.

Scientific notation

• Scientific notation: 1.3897288125 × 10¹¹

Factors of 138972881250

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 17

Divisors of 138972881250

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 25 27 30 35 42 45 49 50 54 63 70 75 90 98 105 125 126 135 147 150 175 189 210 225 245 250 270 294 315 343 350 375 378 441 450 490 525 625 630 675 686 735 750 875 882 945 1029 1050 1125 1225 1250 1323 1350 1470 1575 1715 1750 1875 1890 2058 2205 2250 2401 2450 2625 2646 3087 3125 3150 3375 3430 3675 3750 4375 4410 4725 4802 5145 5250 5625 6125 6174 6250 6615 6750 7203 7350 7875 8575 8750 9261 9375 9450 10290 11025 11250 12005 12250 13125 13230 14406 15435 15750 16807 16875 17150 18375 18522 18750 21609 21875 22050 23625 24010 25725 26250 28125 30625 30870 33075 33614 33750 36015 36750 39375 42875 43218 43750 46305 47250 50421 51450 55125 56250 60025 61250 64827 65625 66150 72030 77175 78750 84035 84375 85750 91875 92610 100842 108045 110250 117649 118125 120050 128625 129654 131250 151263 153125 154350 165375 168070 168750 180075 183750 196875 214375 216090 231525 235298 236250 252105 257250 275625 300125 302526 306250 324135 330750 352947 360150 385875 393750 420175 428750 453789 459375 463050 504210 540225 551250 588245 590625 600250 643125 648270 705894 756315 771750 823543 826875 840350 900375 907578 918750 1058841 1071875 1080450 1157625 1176490 1181250 1260525 1286250 1378125 1500625 1512630 1620675 1647086 1653750 1764735 1800750 1929375 2100875 2117682 2143750 2268945 2315250 2470629 2521050 2701125 2756250 2941225 3001250 3176523 3215625 3241350 3529470 3781575 3858750 4117715 4134375 4201750 4501875 4537890 4941258 5294205 5402250 5788125 5882450 6302625 6353046 6431250 7411887 7503125 7563150 8103375 8235430 8268750 8823675 9003750 9646875 10504375 10588410 11344725 11576250 12353145 12605250 13505625 14706125 14823774 15006250 15882615 16206750 17647350 18907875 19293750 20588575 21008750 22235661 22509375 22689450 24706290 26471025 27011250 28940625 29412250 31513125 31765230 37059435 37815750 40516875 41177150 44118375 44471322 45018750 52521875 52942050 56723625 57881250 61765725 63026250 67528125 73530625 74118870 79413075 81033750 88236750 94539375 102942875 105043750 111178305 113447250 123531450 132355125 135056250 147061250 157565625 158826150 185297175 189078750 202584375 205885750 220591875 222356610 264710250 283618125 308828625 315131250 367653125 370594350 397065375 405168750 441183750 472696875 514714375 555891525 567236250 617657250 661775625 735306250 794130750 926485875 945393750 1029428750 1102959375 1111783050 1323551250 1418090625 1544143125 1852971750 1985326875 2205918750 2573571875 2779457625 2836181250 3088286250 3308878125 3970653750 4632429375 5147143750 5558915250 6617756250 7720715625 9264858750 9926634375 13897288125 15441431250 19853268750 23162146875 27794576250 46324293750 69486440625 138972881250
• Sum of all divisors σ(n): 450346176000
• Sum of proper divisors (its aliquot sum) s(n): 311373294750
• 138972881250 is an abundant number, because the sum of its proper divisors (311373294750) is greater than itself. Its abundance is 172400413500

Bases of 138972881250

• Binary: 10000001011011011011011110000101100010₂
• Hexadecimal: 0x205B6DE162
• Base-36: 1RUCV5GI

Squares and roots of 138972881250

• 138972881250 squared (138972881250²) is 19313461722926601562500
• 138972881250 cubed (138972881250³) is 2684047422546699001411376953125000
• The square root of 138972881250 is 372790.6667957235
• The cube root of 138972881250 is 5179.7645680677

Scales and comparisons

• 138,972,881,250 seconds is equal to 4,418 years, 47 weeks, 1 day, 10 hours, 7 minutes, 30 seconds.
• To count from 1 to 138,972,881,250 would take you about eight thousand, eight hundred thirty-seven 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 138972881250 cubic inches would be around 431.6 feet tall.

Recreational maths with 138972881250

• 138972881250 backwards is 052188279831
• 138972881250 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138972881250's digits is 54
• More coming soon!