128272700655

Names of 128272700655

• Cardinal: 128272700655 can be written as One hundred twenty-eight billion, two hundred seventy-two million, seven hundred thousand, six hundred fifty-five.

Scientific notation

• Scientific notation: 1.28272700655 × 10¹¹

Factors of 128272700655

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 553

Divisors of 128272700655

• Number of divisors d(n): 256
• Complete list of divisors:
  1 3 5 9 11 15 27 33 41 45 53 55 99 123 127 135 159 165 205 265 297 313 369 381 451 477 495 583 615 635 795 939 1107 1143 1353 1397 1431 1485 1565 1749 1845 1905 2173 2255 2385 2817 2915 3429 3443 4059 4191 4695 5207 5247 5535 5715 6519 6731 6765 6985 7155 8451 8745 10329 10865 12177 12573 12833 14085 15621 15741 16589 17145 17215 19557 20193 20295 20955 23903 26035 26235 30987 32595 33655 37719 38499 39751 42255 46863 49767 51645 57277 58671 60579 60885 62865 64165 71709 74041 78105 78705 82945 92961 97785 100965 115497 119253 119515 140589 141163 149301 154935 171831 181737 182479 188595 192495 198755 215127 222123 234315 248835 275971 286385 293355 302895 346491 357759 358545 370205 423489 437261 447903 464805 515493 547437 577485 596265 645381 666369 680149 702945 705815 746505 827913 859155 908685 912395 1073277 1075635 1110615 1270467 1311783 1379855 1546479 1629791 1642311 1732455 1788795 1999107 2040447 2106803 2117445 2186305 2239515 2483739 2577465 2737185 3035681 3226905 3331845 3400745 3811401 3935349 4139565 4889373 4926933 5366385 6121341 6320409 6352335 6558915 7451217 7481639 7732395 8148955 8211555 9107043 9995535 10202235 10534015 11806047 12418695 14668119 15178405 17927701 18364023 18961227 19057005 19676745 22444917 23174833 24446865 24634665 27321129 30606705 31602045 37256085 37408195 44004357 45535215 53783103 56883681 59030235 67334751 69524499 73340595 81963387 86378923 89638505 91820115 94806135 112224585 115874165 136605645 161349309 202004253 208573497 220021785 259136769 268915515 284418405 336673755 347622495 409816935 431894615 484047927 625720491 777410307 806746545 950168153 1010021265 1042867485 1295683845 2332230921 2420239635 2850504459 3128602455 3887051535 4750840765 8551513377 11661154605 14252522295 25654540131 42757566885 128272700655
• Sum of all divisors σ(n): 262527713280
• Sum of proper divisors (its aliquot sum) s(n): 134255012625
• 128272700655 is an abundant number, because the sum of its proper divisors (134255012625) is greater than itself. Its abundance is 5982311970

Bases of 128272700655

• Binary: 1110111011101101001100001010011101111₂
• Hexadecimal: 0x1DDDA614EF
• Base-36: 1MXE959R

Squares and roots of 128272700655

• 128272700655 squared (128272700655²) is 16453885733327237429025
• 128272700655 cubed (128272700655³) is 2110584359282659883891435633511375
• The square root of 128272700655 is 358151.7843805891
• The cube root of 128272700655 is 5043.2606327769

Scales and comparisons

• 128,272,700,655 seconds is equal to 4,078 years, 35 weeks, 17 hours, 44 minutes, 15 seconds.
• To count from 1 to 128,272,700,655 would take you about eight thousand, one hundred fifty-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 128272700655 cubic inches would be around 420.3 feet tall.

Recreational maths with 128272700655

• 128272700655 backwards is 556007272821
• 128272700655 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128272700655's digits is 45
• More coming soon!