1991106388512

Names of 1991106388512

• Cardinal: 1991106388512 can be written as One trillion, nine hundred ninety-one billion, one hundred six million, three hundred eighty-eight thousand, five hundred twelve.

Scientific notation

• Scientific notation: 1.991106388512 × 10¹²

Factors of 1991106388512

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 20636

Divisors of 1991106388512

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 37 48 54 72 74 81 96 108 111 144 148 162 216 222 288 296 324 333 432 444 592 648 666 864 888 999 1063 1184 1296 1332 1776 1998 2126 2592 2664 2997 3189 3552 3996 4252 5328 5994 6378 7992 8504 9567 10656 11988 12756 15984 17008 19134 19531 23976 25512 28701 31968 34016 38268 39062 39331 47952 51024 57402 58593 76536 78124 78662 86103 95904 102048 114804 117186 117993 153072 156248 157324 172206 175779 229608 234372 235986 306144 312496 314648 344412 351558 353979 459216 468744 471972 527337 624992 629296 688824 703116 707958 722647 918432 937488 943944 1054674 1061937 1258592 1377648 1406232 1415916 1445294 1582011 1874976 1887888 2109348 2123874 2167941 2755296 2812464 2831832 2890588 3164022 3185811 3775776 4218696 4247748 4335882 5624928 5663664 5781176 6328044 6371622 6503823 8437392 8495496 8671764 11327328 11562352 12656088 12743244 13007646 16874784 16990992 17343528 19511469 20761453 23124704 25312176 25486488 26015292 33981984 34687056 39022938 41522906 50624352 50972976 52030584 58534407 62284359 69374112 78045876 83045812 101945952 104061168 117068814 124568718 156091752 166091624 186853077 208122336 234137628 249137436 312183504 332183248 373706154 468275256 498274872 560559231 624367008 664366496 747412308 768173761 936550512 996549744 1121118462 1494824616 1536347522 1681677693 1873101024 1993099488 2242236924 2304521283 2989649232 3072695044 3363355386 4484473848 4609042566 5979298464 6145390088 6726710772 6913563849 8968947696 9218085132 12290780176 13453421544 13827127698 17937895392 18436170264 20740691547 24581560352 26906843088 27654255396 36872340528 41481383094 53813686176 55308510792 62222074641 73744681056 82962766188 110617021584 124444149282 165925532376 221234043168 248888298564 331851064752 497776597128 663702129504 995553194256 1991106388512
• Sum of all divisors σ(n): 6020018972352
• Sum of proper divisors (its aliquot sum) s(n): 4028912583840
• 1991106388512 is an abundant number, because the sum of its proper divisors (4028912583840) is greater than itself. Its abundance is 2037806195328

Bases of 1991106388512

• Binary: 11100111110010111001100000110001000100000₂
• Hexadecimal: 0x1CF97306220
• Base-36: PEP9C200

Squares and roots of 1991106388512

• 1991106388512 squared (1991106388512²) is 3964504650373299485574144
• 1991106388512 cubed (1991106388512³) is 7893750536643809571354921302645833728
• The square root of 1991106388512 is 1411065.6924863563
• The cube root of 1991106388512 is 12580.5073345071

Scales and comparisons

• 1,991,106,388,512 seconds is equal to 63,311 years, 1 week, 1 day, 19 hours, 55 minutes, 12 seconds.
• To count from 1 to 1,991,106,388,512 would take you about one hundred fifty-eight thousand, two hundred seventy-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 1991106388512 cubic inches would be around 1048.4 feet tall.

Recreational maths with 1991106388512

• 1991106388512 backwards is 2158836011991
• 1991106388512 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1991106388512's digits is 54
• More coming soon!