12721394978109

Names of 12721394978109

• Cardinal: 12721394978109 can be written as Twelve trillion, seven hundred twenty-one billion, three hundred ninety-four million, nine hundred seventy-eight thousand, one hundred nine.

Scientific notation

• Scientific notation: 1.2721394978109 × 10¹³

Factors of 12721394978109

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 76

Divisors of 12721394978109

• Number of divisors d(n): 252
• Complete list of divisors:
  1 3 9 19 23 27 31 57 69 81 93 171 207 243 279 361 437 513 589 621 713 729 837 961 1083 1311 1539 1767 1863 2139 2187 2511 2883 3249 3933 4617 5301 5589 6417 6561 7533 8303 8649 9747 11191 11799 13547 13851 15903 16767 18259 19251 19683 22103 22599 24909 25947 29241 33573 35397 40641 41553 47709 50301 54777 57753 59049 66309 67797 74727 77841 87723 100719 106191 121923 124659 143127 150903 164331 173259 177147 198927 203391 224181 233523 257393 263169 302157 318573 346921 365769 373977 419957 429381 452709 492993 519777 531441 596781 610173 672543 700569 772179 789507 906471 955719 1040763 1097307 1121931 1259871 1288143 1358127 1478979 1559331 1594323 1790343 1830519 2017629 2101707 2316537 2368521 2719413 2867157 3122289 3291921 3365793 3779613 3864429 4074381 4436937 4677993 5371029 5491557 6052887 6305121 6949611 7105563 7979183 8158239 8601471 9366867 9875763 10097379 11338839 11593287 12223143 13310811 14033979 16113087 16474671 18158661 18915363 20848833 21316689 23937549 24474717 25804413 28100601 29627289 30292137 34016517 34779861 36669429 39932433 42101937 48339261 49424013 54475983 56746089 62546499 63950067 71812647 73424151 77413239 84301803 88881867 102049551 104339583 119797299 126305811 145017783 163427949 170238267 187639497 191850201 215437941 220272453 232239717 252905409 266645601 306148653 313018749 359391897 378917433 435053349 490283847 510714801 562918491 575550603 646313823 660817359 696719151 758716227 799936803 918445959 939056247 1078175691 1136752299 1305160047 1470851541 1532144403 1688755473 1938941469 1982452077 2276148681 2399810409 2755337877 3234527073 3915480141 4412554623 5066266419 5816824407 5947356231 6828446043 7199431227 8266013631 9703581219 11746440423 13237663869 15198799257 17450473221 17842068693 20485338129 21598293681 24798040893 29110743657 35239321269 45596397771 52351419663 61456014387 74394122679 136789193313 157054258989 184368043161 223182368037 410367579939 471162776967 553104129483 669547104111 1413488330901 4240464992703 12721394978109
• Sum of all divisors σ(n): 21714655588128
• Sum of proper divisors (its aliquot sum) s(n): 8993260610019
• 12721394978109 is a deficient number, because the sum of its proper divisors (8993260610019) is less than itself. Its deficiency is 3728134368090

Bases of 12721394978109

• Binary: 10111001000111101110001110101000110100111101₂
• Hexadecimal: 0xB91EE3A8D3D
• Base-36: 4IC4M42T9

Squares and roots of 12721394978109

• 12721394978109 squared (12721394978109²) is 161833890189056884589215881
• 12721394978109 cubed (12721394978109³) is 2058752837938911616200183701931470149029
• The square root of 12721394978109 is 3566706.4608836259
• The cube root of 12721394978109 is 23344.1597017529

Scales and comparisons

• 12,721,394,978,109 seconds is equal to 404,501 years, 3 days, 19 hours, 15 minutes, 9 seconds.
• To count from 1 to 12,721,394,978,109 would take you about one million, eleven thousand, two hundred fifty-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 12721394978109 cubic inches would be around 1945.3 feet tall.

Recreational maths with 12721394978109

• 12721394978109 backwards is 90187949312721
• The number of decimal digits it has is: 14
• The sum of 12721394978109's digits is 63
• More coming soon!