21446729370

Names of 21446729370

• Cardinal: 21446729370 can be written as Twenty-one billion, four hundred forty-six million, seven hundred twenty-nine thousand, three hundred seventy.

Scientific notation

• Scientific notation: 2.144672937 × 10¹⁰

Factors of 21446729370

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 380099

Divisors of 21446729370

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 19 22 27 30 33 38 45 54 55 57 66 90 95 99 110 114 135 165 171 190 198 209 270 285 297 330 342 418 495 513 570 594 627 855 990 1026 1045 1254 1485 1710 1881 2090 2565 2970 3135 3762 5130 5643 6270 9405 11286 18810 28215 56430 380059 760118 1140177 1900295 2280354 3420531 3800590 4180649 5700885 6841062 7221121 8361298 10261593 11401770 12541947 14442242 17102655 20523186 20903245 21663363 25083894 34205310 36105605 37625841 41806490 43326726 51307965 62709735 64990089 72211210 75251682 79432331 102615930 108316815 112877523 125419470 129980178 158864662 188129205 194970267 216633630 225755046 238296993 324950445 376258410 389940534 397161655 476593986 564387615 649900890 714890979 794323310 974851335 1128775230 1191484965 1429781958 1949702670 2144672937 2382969930 3574454895 4289345874 7148909790 10723364685 21446729370
• Sum of all divisors σ(n): 65674368000
• Sum of proper divisors (its aliquot sum) s(n): 44227638630
• 21446729370 is an abundant number, because the sum of its proper divisors (44227638630) is greater than itself. Its abundance is 22780909260

Bases of 21446729370

• Binary: 10011111110010100110001111010011010₂
• Hexadecimal: 0x4FE531E9A
• Base-36: 9UOTUAI

Squares and roots of 21446729370

• 21446729370 squared (21446729370²) is 459962200670020596900
• 21446729370 cubed (21446729370³) is 9864684838199564414040160953000
• The square root of 21446729370 is 146447.0189863897
• The cube root of 21446729370 is 2778.3504425675

Scales and comparisons

• 21,446,729,370 seconds is equal to 681 years, 48 weeks, 6 days, 49 minutes, 30 seconds.
• To count from 1 to 21,446,729,370 would take you about one thousand, three hundred sixty-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 21446729370 cubic inches would be around 231.5 feet tall.

Recreational maths with 21446729370

• 21446729370 backwards is 07392764412
• 21446729370 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21446729370's digits is 45
• More coming soon!