21311767698390

Names of 21311767698390

• Cardinal: 21311767698390 can be written as Twenty-one trillion, three hundred eleven billion, seven hundred sixty-seven million, six hundred ninety-eight thousand, three hundred ninety.

Scientific notation

• Scientific notation: 2.131176769839 × 10¹³

Factors of 21311767698390

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 396

Divisors of 21311767698390

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 81 90 117 130 135 162 169 195 234 243 270 338 351 373 390 405 486 507 585 702 746 810 845 1014 1053 1119 1170 1215 1521 1690 1755 1865 2106 2238 2430 2535 3042 3159 3357 3510 3730 4563 4849 5070 5265 5595 6318 6714 7605 9126 9698 10071 10530 11190 13689 14547 15210 15795 16785 20142 22815 24245 27378 29094 30213 31590 33570 41067 43641 45630 48490 50355 60426 63037 68445 72735 82134 87282 90639 100710 126074 130923 136890 139129 145470 151065 181278 189111 205335 218205 261846 278258 302130 315185 378222 392769 410670 417387 436410 453195 567333 630370 654615 695645 785538 834774 906390 945555 1134666 1178307 1252161 1309230 1391290 1701999 1808677 1891110 1963845 2086935 2356614 2504322 2836665 3403998 3617354 3756483 3927690 4173870 5105997 5426031 5673330 5891535 6260805 7512966 8509995 9043385 10211994 10852062 11269449 11783070 12521610 15317991 16278093 17019990 18086770 18782415 22538898 23512801 25529985 27130155 30635982 32556186 33808347 37564830 47025602 48834279 51059970 51895117 54260310 56347245 67616694 70538403 76589955 81390465 97668558 103790234 112694490 117564005 141076806 146502837 153179910 155685351 162780930 169041735 211615209 235128010 244171395 259475585 293005674 311370702 338083470 352692015 423230418 439508511 467056053 488342790 518951170 634845627 674636521 705384030 732514185 778426755 879017022 934112106 1058076045 1269691254 1349273042 1401168159 1465028370 1556853510 1904536881 2023909563 2116152090 2197542555 2335280265 2802336318 3174228135 3373182605 3809073762 4047819126 4203504477 4395085110 4670560530 5713610643 6071728689 6348456270 6746365210 7005840795 8407008954 8770274773 9522684405 10119547815 11427221286 12143457378 12610513431 14011681590 17540549546 18215186067 19045368810 20239095630 21017522385 25221026862 26310824319 28568053215 30358643445 36430372134 42035044770 43851373865 52621648638 54645558201 57136106430 60717286890 63052567155 78932472957 87702747730 91075930335 109291116402 126105134310 131554121595 157864945914 163936674603 182151860670 236797418871 263108243190 273227791005 327873349206 394662364785 473594837742 546455582010 710392256613 789324729570 819683373015 1183987094355 1420784513226 1639366746030 2131176769839 2367974188710 3551961283065 4262353539678 7103922566130 10655883849195 21311767698390
• Sum of all divisors σ(n): 62390341933920
• Sum of proper divisors (its aliquot sum) s(n): 41078574235530
• 21311767698390 is an abundant number, because the sum of its proper divisors (41078574235530) is greater than itself. Its abundance is 19766806537140

Bases of 21311767698390

• Binary: 100110110001000001000010101111101101111010110₂
• Hexadecimal: 0x13620857DBD6
• Base-36: 7JYHO8FDI

Squares and roots of 21311767698390

• 21311767698390 squared (21311767698390²) is 454191442430139398008592100
• 21311767698390 cubed (21311767698390³) is 9679622511667806106664433008461336719000
• The square root of 21311767698390 is 4616467.0147624797
• The cube root of 21311767698390 is 27725.1023380935

Scales and comparisons

• 21,311,767,698,390 seconds is equal to 677,648 years, 15 weeks, 23 hours, 46 minutes, 30 seconds.
• To count from 1 to 21,311,767,698,390 would take you about one million, six hundred ninety-four thousand, one hundred twenty 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 21311767698390 cubic inches would be around 2310.4 feet tall.

Recreational maths with 21311767698390

• 21311767698390 backwards is 09389676711312
• The number of decimal digits it has is: 14
• The sum of 21311767698390's digits is 63
• More coming soon!