21494888106021

Names of 21494888106021

• Cardinal: 21494888106021 can be written as Twenty-one trillion, four hundred ninety-four billion, eight hundred eighty-eight million, one hundred six thousand and twenty-one.

Scientific notation

• Scientific notation: 2.1494888106021 × 10¹³

Factors of 21494888106021

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1765

Divisors of 21494888106021

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 9 11 31 33 67 93 99 201 279 313 331 341 603 737 939 993 1009 1023 2077 2211 2817 2979 3027 3069 3443 3641 6231 6633 9081 9703 10261 10329 10923 11099 18693 20971 22177 22847 29109 30783 30987 31279 32769 33297 62913 66531 67603 68541 87327 92349 93837 99891 103603 106733 112871 188739 199593 202809 205623 230681 243947 281511 310809 315817 320199 333979 338613 344069 608427 650101 687487 692043 731841 743633 932427 947451 960597 1001937 1015839 1032207 1139633 1950303 2062461 2076129 2095693 2195523 2230899 2842353 3005811 3096621 3211693 3418899 3473987 3673769 5850909 6187383 6287079 6692697 6941401 7151111 7562357 9635079 9790327 10256697 10353349 10421961 11021307 18861237 20824203 21159739 21453333 22376593 22687071 23052623 28905237 29370981 31060047 31265883 33063921 35328623 62472609 63479217 64359999 67129779 68061213 69157869 76355411 88112943 93180141 104535427 105985869 107693597 113886839 190437651 201389337 207473607 215183431 229066233 232757129 246142523 313606281 317957607 323080791 341660517 645550293 655951909 687198699 693674383 698271387 738427569 940818843 969242373 1024981551 1149889697 1936650879 1967855727 2081023149 2094814161 2215282707 2367017741 3240598237 3449669091 5903567181 6243069447 7003873609 7101053223 7215470999 7630418213 9721794711 10349007273 21011620827 21303159669 21646412997 22891254639 29165384133 35646580607 63034862481 64939238991 68673763917 77042609699 106939741821 217120081879 231127829097 320819225463 651360245637 693383487291 1954080736911 2388320900669 7164962702007 21494888106021
• Sum of all divisors σ(n): 35741485178880
• Sum of proper divisors (its aliquot sum) s(n): 14246597072859
• 21494888106021 is a deficient number, because the sum of its proper divisors (14246597072859) is less than itself. Its deficiency is 7248291033162

Bases of 21494888106021

• Binary: 100111000110010101011001010111000100000100101₂
• Hexadecimal: 0x138CAB2B8825
• Base-36: 7MAM5EA79

Squares and roots of 21494888106021

• 21494888106021 squared (21494888106021²) is 462030214690363052536452441
• 21494888106021 cubed (21494888106021³) is 9931287766370213885296142329588832247261
• The square root of 21494888106021 is 4636257.9852744389
• The cube root of 21494888106021 is 27804.2848777253

Scales and comparisons

• 21,494,888,106,021 seconds is equal to 683,470 years, 49 weeks, 4 days, 3 hours, 40 minutes, 21 seconds.
• To count from 1 to 21,494,888,106,021 would take you about one million, seven hundred eight thousand, six 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 21494888106021 cubic inches would be around 2317 feet tall.

Recreational maths with 21494888106021

• 21494888106021 backwards is 12060188849412
• The number of decimal digits it has is: 14
• The sum of 21494888106021's digits is 54
• More coming soon!