1987989506901

Names of 1987989506901

• Cardinal: 1987989506901 can be written as One trillion, nine hundred eighty-seven billion, nine hundred eighty-nine million, five hundred six thousand, nine hundred one.

Scientific notation

• Scientific notation: 1.987989506901 × 10¹²

Factors of 1987989506901

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 123

Divisors of 1987989506901

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 9 19 23 31 47 57 69 93 141 171 207 279 361 423 437 589 713 893 961 1081 1083 1311 1457 1767 2139 2679 2883 3243 3249 3933 4371 5301 6417 6859 8037 8303 8649 9729 11191 13113 13547 16967 18259 20539 20577 22103 24909 27683 29791 33511 33573 40641 45167 50901 54777 61617 61731 66309 74727 83049 89373 100533 100719 121923 135501 152703 157757 164331 184851 198927 212629 249147 257393 268119 301599 322373 346921 390241 406503 419957 473271 525977 566029 636709 637887 685193 772179 858173 967119 1038841 1040763 1170723 1259871 1400177 1419813 1577931 1698087 1910127 1913661 2055579 2316537 2574519 2901357 3116523 3122289 3512169 3779613 4200531 4733793 4890467 5094261 5730381 6166737 6591499 7414579 7723557 7979183 9349569 9993563 10754551 12097471 12601593 13018667 14671401 16305287 19737979 19774497 22243737 23937549 26603363 29980689 32204071 32263653 36292413 39056001 44014203 48915861 59213937 59323491 66731211 71812647 79810089 89942067 96612213 96790959 108877239 117168003 146747583 151604477 177641811 204336469 229851949 239430267 247354673 289836639 309800453 375021601 454813431 505463897 611877349 613009407 689555847 742064019 929401359 1125064803 1364440293 1516391691 1835632047 1839028221 2068667541 2226192057 2788204077 3375194409 4549175073 4699738787 5506896141 7125410419 9603814043 11625669631 14099216361 21376231257 28811442129 34877008893 42297649083 64128693771 86434326387 104631026679 220887722989 662663168967 1987989506901
• Sum of all divisors σ(n): 3337793372160
• Sum of proper divisors (its aliquot sum) s(n): 1349803865259
• 1987989506901 is a deficient number, because the sum of its proper divisors (1349803865259) is less than itself. Its deficiency is 638185641642

Bases of 1987989506901

• Binary: 11100111011011101011010001000101101010101₂
• Hexadecimal: 0x1CEDD688B55
• Base-36: PD9PMGR9

Squares and roots of 1987989506901

• 1987989506901 squared (1987989506901²) is 3952102279548481126623801
• 1987989506901 cubed (1987989506901³) is 7856737861941903051840355092920350701
• The square root of 1987989506901 is 1409960.8175055787
• The cube root of 1987989506901 is 12573.9393896987

Scales and comparisons

• 1,987,989,506,901 seconds is equal to 63,211 years, 47 weeks, 4 days, 19 hours, 28 minutes, 21 seconds.
• To count from 1 to 1,987,989,506,901 would take you about one hundred fifty-eight thousand and twenty-nine 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 1987989506901 cubic inches would be around 1047.8 feet tall.

Recreational maths with 1987989506901

• 1987989506901 backwards is 1096059897891
• The number of decimal digits it has is: 13
• The sum of 1987989506901's digits is 72
• More coming soon!