21356533224

Names of 21356533224

• Cardinal: 21356533224 can be written as Twenty-one billion, three hundred fifty-six million, five hundred thirty-three thousand, two hundred twenty-four.

Scientific notation

• Scientific notation: 2.1356533224 × 10¹⁰

Factors of 21356533224

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2908

Divisors of 21356533224

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 81 101 104 108 117 156 162 202 216 234 243 303 312 324 351 404 468 486 606 648 702 729 808 909 936 972 1053 1212 1313 1404 1458 1818 1944 2106 2424 2626 2727 2789 2808 2916 3159 3636 3939 4212 5252 5454 5578 5832 6318 7272 7878 8181 8367 8424 9477 10504 10908 11156 11817 12636 15756 16362 16734 18954 21816 22312 23634 24543 25101 25272 31512 32724 33468 35451 36257 37908 47268 49086 50202 65448 66936 70902 72514 73629 75303 75816 94536 98172 100404 106353 108771 141804 145028 147258 150606 196344 200808 212706 217542 225909 281689 283608 290056 294516 301212 319059 326313 425412 435084 451818 563378 589032 602424 638118 652626 677727 845067 850824 870168 903636 957177 978939 1126756 1276236 1305252 1355454 1690134 1807272 1914354 1957878 2033181 2253512 2535201 2552472 2610504 2710908 2936817 3380268 3661957 3828708 3915756 4066362 5070402 5421816 5873634 6760536 7323914 7605603 7657416 7831512 8132724 8810451 10140804 10985871 11747268 14647828 15211206 16265448 17620902 20281608 21971742 22816809 23494536 26431353 29295656 30422412 32957613 35241804 43943484 45633618 52862706 60844824 65915226 68450427 70483608 87886968 91267236 98872839 105725412 131830452 136900854 182534472 197745678 205351281 211450824 263660904 273801708 296618517 395491356 410702562 547603416 593237034 790982712 821405124 889855551 1186474068 1642810248 1779711102 2372948136 2669566653 3559422204 5339133306 7118844408 10678266612 21356533224
• Sum of all divisors σ(n): 65319647400
• Sum of proper divisors (its aliquot sum) s(n): 43963114176
• 21356533224 is an abundant number, because the sum of its proper divisors (43963114176) is greater than itself. Its abundance is 22606580952

Bases of 21356533224

• Binary: 10011111000111100101101010111101000₂
• Hexadecimal: 0x4F8F2D5E8
• Base-36: 9T74MI0

Squares and roots of 21356533224

• 21356533224 squared (21356533224²) is 456101511347815834176
• 21356533224 cubed (21356533224³) is 9740747080616241882413018663424
• The square root of 21356533224 is 146138.7464842915
• The cube root of 21356533224 is 2774.4501022879

Scales and comparisons

• 21,356,533,224 seconds is equal to 679 years, 3 weeks, 5 days, 2 hours, 20 minutes, 24 seconds.
• To count from 1 to 21,356,533,224 would take you about one thousand, three hundred fifty-eight 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 21356533224 cubic inches would be around 231.2 feet tall.

Recreational maths with 21356533224

• 21356533224 backwards is 42233565312
• 21356533224 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21356533224's digits is 36
• More coming soon!