21243671631

Names of 21243671631

• Cardinal: 21243671631 can be written as Twenty-one billion, two hundred forty-three million, six hundred seventy-one thousand, six hundred thirty-one.

Scientific notation

• Scientific notation: 2.1243671631 × 10¹⁰

Factors of 21243671631

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 63

Divisors of 21243671631

• Number of divisors d(n): 324
• Complete list of divisors:
  1 3 7 9 13 17 21 23 27 39 49 51 63 69 81 91 117 119 147 153 161 169 189 207 221 243 273 299 351 357 391 441 459 483 507 567 621 637 663 729 819 833 897 1053 1071 1127 1173 1183 1323 1377 1449 1521 1547 1701 1863 1911 1989 2093 2187 2457 2499 2691 2737 2873 3159 3213 3381 3519 3549 3887 3969 4131 4347 4563 4641 5083 5103 5589 5733 5967 6279 6561 7371 7497 8073 8211 8281 8619 9477 9639 10143 10557 10647 10829 11661 11907 12393 13041 13689 13923 14651 15249 15309 16767 17199 17901 18837 19159 20111 22113 22491 24219 24633 24843 25857 27209 28431 28917 30429 31671 31941 32487 34983 35581 35721 37179 39123 41067 41769 43953 45747 45927 50301 51597 53703 56511 57477 60333 66079 66339 67473 72657 73899 74529 77571 81627 85293 86751 91287 95013 95823 97461 104949 106743 107163 111537 117369 123201 125307 131859 137241 140777 150903 154791 161109 169533 172431 180999 190463 198237 199017 202419 217971 221697 223587 232713 244881 249067 260253 273861 285039 287469 292383 314847 320229 321489 352107 369603 375921 395577 411723 422331 462553 464373 483327 508599 517293 542997 571389 594711 597051 607257 653913 665091 670761 698139 734643 747201 780759 821583 855117 862407 877149 944541 960687 1056321 1108809 1127763 1186731 1235169 1266993 1387659 1393119 1449981 1525797 1551879 1628991 1714167 1784133 1821771 1961739 1995273 2012283 2094417 2203929 2241603 2464749 2565351 2587221 2631447 2833623 2882061 3237871 3383289 3560193 3705507 3800979 4162977 4179357 4577391 4655637 4886973 5142501 5352399 5465313 5985819 6036849 6283251 6611787 6724809 7394247 7761663 7894341 8500869 8646183 9713613 10149867 10680579 11116521 11402937 12488931 13732173 13966911 14660919 15427503 16057197 17957457 18110547 18849753 19835361 20174427 23683023 25502607 25938549 29140839 32041737 33349563 34208811 37466793 41900733 43982757 46282509 48171591 54331641 59506083 60523281 71049069 77815647 87422517 96125211 102626433 112400379 125702199 131948271 138847527 144514773 178518249 181569843 233446941 262267551 307879299 337201137 416542581 433544319 544709529 786802653 923637897 1011603411 1249627743 1634128587 2360407959 3034810233 7081223877 21243671631
• Sum of all divisors σ(n): 44345435472
• Sum of proper divisors (its aliquot sum) s(n): 23101763841
• 21243671631 is an abundant number, because the sum of its proper divisors (23101763841) is greater than itself. Its abundance is 1858092210

Bases of 21243671631

• Binary: 10011110010001110001011010001001111₂
• Hexadecimal: 0x4F238B44F
• Base-36: 9RBXLXR

Squares and roots of 21243671631

• 21243671631 squared (21243671631²) is 451293584365754200161
• 21243671631 cubed (21243671631³) is 9587132715443077629879331332591
• The square root of 21243671631 is 145752.0896282451
• The cube root of 21243671631 is 2769.5541442029

Scales and comparisons

• 21,243,671,631 seconds is equal to 675 years, 25 weeks, 19 hours, 53 minutes, 51 seconds.
• To count from 1 to 21,243,671,631 would take you about one thousand, three hundred fifty 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 21243671631 cubic inches would be around 230.8 feet tall.

Recreational maths with 21243671631

• 21243671631 backwards is 13617634212
• The number of decimal digits it has is: 11
• The sum of 21243671631's digits is 36
• More coming soon!