21124849977

Names of 21124849977

• Cardinal: 21124849977 can be written as Twenty-one billion, one hundred twenty-four million, eight hundred forty-nine thousand, nine hundred seventy-seven.

Scientific notation

• Scientific notation: 2.1124849977 × 10¹⁰

Factors of 21124849977

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 739

Divisors of 21124849977

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 11 21 27 33 63 77 81 99 121 189 197 231 243 297 363 521 567 591 693 847 891 1089 1379 1563 1701 1773 2079 2167 2541 2673 3267 3647 4137 4689 5319 5731 6237 6501 7623 9801 10941 12411 14067 15169 15957 17193 18711 19503 22869 23837 29403 32823 37233 40117 42201 45507 47871 51579 58509 63041 68607 71511 98469 102637 111699 120351 126603 136521 154737 166859 175527 189123 205821 214533 295407 307911 335097 361053 409563 441287 464211 500577 526581 567369 643599 718459 886221 923733 1083159 1129007 1228689 1323861 1392633 1501731 1702107 1930797 2155377 2771199 3249477 3387021 3686067 3971583 4505193 5106321 5792391 6466131 7903049 8313597 9748431 10161063 11914749 12419077 13515579 15318963 19398393 23709147 24940791 30483189 35744247 37257231 40546737 58195179 71127441 86933539 91449567 107232741 111771693 174585537 213382323 260800617 274348701 335315079 640146969 782401851 1005945237 1920440907 2347205553 3017835711 7041616659 21124849977
• Sum of all divisors σ(n): 40029365376
• Sum of proper divisors (its aliquot sum) s(n): 18904515399
• 21124849977 is a deficient number, because the sum of its proper divisors (18904515399) is less than itself. Its deficiency is 2220334578

Bases of 21124849977

• Binary: 10011101011001000111010000100111001₂
• Hexadecimal: 0x4EB23A139
• Base-36: 9PD6UK9

Squares and roots of 21124849977

• 21124849977 squared (21124849977²) is 446259286550756900529
• 21124849977 cubed (21124849977³) is 9427160479227793319472636937833
• The square root of 21124849977 is 145343.9024417607
• The cube root of 21124849977 is 2764.3808628917

Scales and comparisons

• 21,124,849,977 seconds is equal to 671 years, 36 weeks, 4 days, 13 hours, 52 minutes, 57 seconds.
• To count from 1 to 21,124,849,977 would take you about one thousand, three hundred forty-three 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 21124849977 cubic inches would be around 230.4 feet tall.

Recreational maths with 21124849977

• 21124849977 backwards is 77994842112
• The number of decimal digits it has is: 11
• The sum of 21124849977's digits is 54
• More coming soon!