1988820911385

Names of 1988820911385

• Cardinal: 1988820911385 can be written as One trillion, nine hundred eighty-eight billion, eight hundred twenty million, nine hundred eleven thousand, three hundred eighty-five.

Scientific notation

• Scientific notation: 1.988820911385 × 10¹²

Factors of 1988820911385

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1422

Divisors of 1988820911385

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 7 9 11 15 21 27 33 35 45 49 55 63 77 81 99 105 135 147 165 189 231 243 245 297 315 343 385 405 441 467 495 539 567 693 735 891 929 945 1029 1155 1215 1323 1401 1485 1617 1701 1715 2079 2205 2335 2673 2695 2787 2835 3087 3269 3465 3773 3969 4203 4455 4645 4851 5137 5145 6237 6503 6615 7005 8085 8361 8505 9261 9807 10219 10395 11319 11907 12609 13365 13935 14553 15411 15435 16345 18711 18865 19509 19845 21015 22883 24255 25083 25685 27783 29421 30657 31185 32515 33957 35959 37827 41805 43659 45521 46233 46305 49035 51095 56595 58527 59535 63045 68649 71533 72765 75249 77055 83349 88263 91971 93555 97545 101871 107877 113481 114415 125415 130977 136563 138699 138915 147105 153285 160181 169785 175581 179795 189135 205947 214599 218295 225747 227605 231165 251713 264789 275913 292635 305613 318647 323631 343245 357665 376245 409689 416097 416745 433843 441315 459855 480543 500731 509355 526743 539385 567405 617841 643797 654885 682815 693495 755139 794367 800905 827739 877905 916839 955941 970893 1029735 1072995 1128735 1229067 1248291 1258565 1301529 1323945 1379565 1441629 1502193 1528065 1580229 1593235 1618155 1761991 1853523 1931391 2048445 2080485 2169215 2265417 2402715 2483217 2503655 2633715 2867823 2912679 3036901 3089205 3218985 3505117 3687201 3775695 3904587 3971835 4138695 4324887 4506579 4584195 4772273 4779705 4854465 5285973 5560569 5794173 6145335 6241455 6507645 6796251 7208145 7510965 7901145 8603469 8738037 8809955 9110703 9267615 9656955 10515351 11061603 11327085 11713761 12416085 12974661 13519737 14316819 14339115 14563395 15184505 15857919 17382519 17525585 18436005 19522935 20388753 21258307 21624435 22532895 23861365 25810407 26429865 27332109 27802845 28970865 31546053 33405911 33981255 35141283 38923983 40559211 42950457 43017345 43690185 45553515 47573757 52576755 55308015 58568805 61166259 63774921 64873305 67598685 71584095 77431221 79289595 81996327 86912595 94638159 100217733 101943765 105423849 106291535 121677633 128851371 129052035 136660545 142721271 148808149 157730265 167029555 175706415 191324763 194619915 202796055 214752285 233841377 237868785 245988981 283914477 300653199 305831295 318874605 386554113 387156105 409981635 428163813 446424447 473190795 501088665 527119245 573974289 608388165 644256855 701524131 713606355 737966943 744040745 851743431 901959597 956623815 1159662339 1169206885 1229944905 1339273341 1419572385 1503265995 1636889639 1721922867 1932770565 2104572393 2140819065 2232122235 2705878791 2869871445 3507620655 3689834715 4017820023 4258717155 4509797985 4910668917 5165768601 5798311695 6313717179 6696366705 8117636373 8184448195 8609614335 10522861965 12053460069 13529393955 14732006751 18941151537 20089100115 24553344585 25828843005 31568585895 36160380207 40588181865 44196020253 56823454611 60267300345 73660033755 94705757685 132588060759 180801901035 220980101265 284117273055 397764182277 662940303795 1988820911385
• Sum of all divisors σ(n): 4562707968000
• Sum of proper divisors (its aliquot sum) s(n): 2573887056615
• 1988820911385 is an abundant number, because the sum of its proper divisors (2573887056615) is greater than itself. Its abundance is 585066145230

Bases of 1988820911385

• Binary: 11100111100001110111101101100010100011001₂
• Hexadecimal: 0x1CF0EF6C519
• Base-36: PDNGMCK9

Squares and roots of 1988820911385

• 1988820911385 squared (1988820911385²) is 3955408617562262022618225
• 1988820911385 cubed (1988820911385³) is 7866599371680260872805751728410991625
• The square root of 1988820911385 is 1410255.6191644833
• The cube root of 1988820911385 is 12575.6920100475

Scales and comparisons

• 1,988,820,911,385 seconds is equal to 63,238 years, 18 weeks, 2 days, 13 hours, 9 minutes, 45 seconds.
• To count from 1 to 1,988,820,911,385 would take you about one hundred fifty-eight thousand and ninety-five 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 1988820911385 cubic inches would be around 1048 feet tall.

Recreational maths with 1988820911385

• 1988820911385 backwards is 5831190288891
• 1988820911385 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1988820911385's digits is 63
• More coming soon!