1988907121305

Names of 1988907121305

• Cardinal: 1988907121305 can be written as One trillion, nine hundred eighty-eight billion, nine hundred seven million, one hundred twenty-one thousand, three hundred five.

Scientific notation

• Scientific notation: 1.988907121305 × 10¹²

Factors of 1988907121305

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4876

Divisors of 1988907121305

• Number of divisors d(n): 160
• Complete list of divisors:
  1 3 5 9 13 15 27 39 45 65 67 81 117 135 195 201 335 351 405 585 603 871 1005 1053 1755 1809 2089 2613 2699 3015 4355 5265 5427 6267 7839 8097 9045 10445 13065 13495 18801 23517 24291 27135 27157 31335 35087 39195 40485 56403 70551 72873 81471 94005 105261 117585 121455 135785 139963 169209 175435 180833 218619 244413 282015 315783 352755 364365 407355 419889 526305 542499 699815 733239 846045 904165 947349 1093095 1222065 1259667 1578915 1627497 1819519 2099445 2199717 2350829 2712495 2842047 3666195 3779001 4736745 4882491 5458557 5638211 6298335 7052487 8137485 9097595 10998585 11337003 11754145 14210235 14647473 16375671 16914633 18895005 21157461 24412455 27292785 28191055 35262435 49127013 50743899 56685015 63472383 73237365 73296743 81878355 84573165 105787305 147381039 152231697 190417149 219890229 245635065 253719495 317361915 366483715 377760137 456695091 659670687 736905195 761158485 952085745 1099451145 1133280411 1888800685 1979012061 2283475455 3298353435 3399841233 4910881781 5666402055 5937036183 9895060305 10199523699 14732645343 16999206165 24554408905 29685180915 30598571097 44197936029 50997618495 73663226715 132593808087 152992855485 220989680145 397781424261 662969040435 1988907121305
• Sum of all divisors σ(n): 3900170736000
• Sum of proper divisors (its aliquot sum) s(n): 1911263614695
• 1988907121305 is a deficient number, because the sum of its proper divisors (1911263614695) is less than itself. Its deficiency is 77643506610

Bases of 1988907121305

• Binary: 11100111100010100000110100011101010011001₂
• Hexadecimal: 0x1CF141A3A99
• Base-36: PDOVY4K9

Squares and roots of 1988907121305

• 1988907121305 squared (1988907121305²) is 3955751537177741984903025
• 1988907121305 cubed (1988907121305³) is 7867622402406011495313512222336447625
• The square root of 1988907121305 is 1410286.1841856779
• The cube root of 1988907121305 is 12575.8737146497

Scales and comparisons

• 1,988,907,121,305 seconds is equal to 63,241 years, 4 weeks, 6 days, 8 hours, 21 minutes, 45 seconds.
• To count from 1 to 1,988,907,121,305 would take you about one hundred fifty-eight thousand, one hundred two 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 1988907121305 cubic inches would be around 1048 feet tall.

Recreational maths with 1988907121305

• 1988907121305 backwards is 5031217098891
• The number of decimal digits it has is: 13
• The sum of 1988907121305's digits is 54
• More coming soon!