21550409400

Names of 21550409400

• Cardinal: 21550409400 can be written as Twenty-one billion, five hundred fifty million, four hundred nine thousand, four hundred.

Scientific notation

• Scientific notation: 2.15504094 × 10¹⁰

Factors of 21550409400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 45377

Divisors of 21550409400

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 25 26 30 39 40 50 52 60 61 65 75 78 100 104 120 122 130 150 156 183 195 200 244 260 300 305 312 325 366 390 488 520 600 610 650 732 780 793 915 975 1220 1300 1464 1525 1560 1586 1830 1950 2379 2440 2600 3050 3172 3660 3900 3965 4575 4758 6100 6344 7320 7800 7930 9150 9516 11895 12200 15860 18300 19032 19825 23790 31720 36600 39650 45293 47580 59475 79300 90586 95160 118950 135879 158600 181172 226465 237900 271758 362344 452930 475800 543516 588809 679395 905860 1087032 1132325 1177618 1358790 1766427 1811720 2264650 2355236 2717580 2762873 2944045 3396975 3532854 4529300 4710472 5435160 5525746 5888090 6793950 7065708 8288619 8832135 9058600 11051492 11776180 13587900 13814365 14131416 14720225 16577238 17664270 22102984 23552360 27175800 27628730 29440450 33154476 35328540 35917349 41443095 44160675 55257460 58880900 66308952 69071825 70657080 71834698 82886190 88321350 107752047 110514920 117761800 138143650 143669396 165772380 176642700 179586745 207215475 215504094 276287300 287338792 331544760 353285400 359173490 414430950 431008188 538760235 552574600 718346980 828861900 862016376 897933725 1077520470 1436693960 1657723800 1795867450 2155040940 2693801175 3591734900 4310081880 5387602350 7183469800 10775204700 21550409400
• Sum of all divisors σ(n): 73126257120
• Sum of proper divisors (its aliquot sum) s(n): 51575847720
• 21550409400 is an abundant number, because the sum of its proper divisors (51575847720) is greater than itself. Its abundance is 30025438320

Bases of 21550409400

• Binary: 10100000100100000010010011010111000₂
• Hexadecimal: 0x5048126B8
• Base-36: 9WEK2BC

Squares and roots of 21550409400

• 21550409400 squared (21550409400²) is 464420145307608360000
• 21550409400 cubed (21550409400³) is 10008444264986449092862584000000
• The square root of 21550409400 is 146800.5769743429
• The cube root of 21550409400 is 2782.8203783771

Scales and comparisons

• 21,550,409,400 seconds is equal to 685 years, 12 weeks, 2 days, 50 minutes.
• To count from 1 to 21,550,409,400 would take you about one thousand, three hundred seventy 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 21550409400 cubic inches would be around 231.9 feet tall.

Recreational maths with 21550409400

• 21550409400 backwards is 00490405512
• 21550409400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21550409400's digits is 30
• More coming soon!