21308244165

Names of 21308244165

• Cardinal: 21308244165 can be written as Twenty-one billion, three hundred eight million, two hundred forty-four thousand, one hundred sixty-five.

Scientific notation

• Scientific notation: 2.1308244165 × 10¹⁰

Factors of 21308244165

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 209

Divisors of 21308244165

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 9 13 15 19 31 39 45 57 65 67 71 93 95 117 155 169 171 195 201 213 247 279 285 335 355 403 465 507 585 589 603 639 741 845 855 871 923 1005 1065 1209 1235 1273 1349 1395 1521 1767 2015 2077 2201 2223 2535 2613 2769 2945 3015 3195 3211 3627 3705 3819 4047 4355 4615 4757 5239 5301 6045 6231 6365 6603 6745 7605 7657 7839 8307 8835 9633 10385 11005 11115 11323 11457 11999 12141 13065 13845 14271 15717 16055 16549 17537 18135 18693 19095 19809 20235 22971 23785 26195 26505 27001 28613 28899 31155 33015 33969 35997 38285 39195 39463 41535 41819 42813 47151 48165 49647 52611 56615 57285 59995 60705 61841 68913 71355 78585 81003 82745 85839 87685 90383 93465 99045 99541 101907 107991 114855 118389 125457 135005 143065 144495 147467 148941 157833 169845 179985 185523 197315 209095 214065 215137 227981 235755 243009 248235 257517 263055 271149 298623 309205 344565 351013 355167 371969 376371 405015 429195 442401 451915 497705 509535 513019 539955 543647 556569 591945 627285 645411 683943 737335 744705 789165 803933 813447 895869 927615 1053039 1075685 1115907 1139905 1174979 1215045 1287585 1327203 1355745 1493115 1539057 1630941 1755065 1775835 1859845 1881855 1917071 1936233 2051829 2212005 2411799 2565095 2718235 2782845 2801873 3159117 3227055 3347721 3419715 3524937 4019665 4067235 4479345 4617171 4892823 5265195 5579535 5751213 5874895 6636015 6669247 7067411 7235397 7695285 8154705 8405619 9585355 9681165 10259145 10574811 12058995 14009365 15274727 15795585 16738605 17253639 17624685 20007741 21202233 23085855 24464115 24921923 25216857 28756065 33346235 35337055 36176985 36424349 42028095 45824181 52874055 60023223 63606699 74765769 76373635 86268195 100038705 106011165 109273047 124609615 126084285 137472543 182121745 224297307 229120905 300116115 318033495 327819141 373828845 473516537 546365235 687362715 1121486535 1420549611 1639095705 2367582685 4261648833 7102748055 21308244165
• Sum of all divisors σ(n): 44726722560
• Sum of proper divisors (its aliquot sum) s(n): 23418478395
• 21308244165 is an abundant number, because the sum of its proper divisors (23418478395) is greater than itself. Its abundance is 2110234230

Bases of 21308244165

• Binary: 10011110110000100100000000011000101₂
• Hexadecimal: 0x4F61200C5
• Base-36: 9SEDMF9

Squares and roots of 21308244165

• 21308244165 squared (21308244165²) is 454041269395256547225
• 21308244165 cubed (21308244165³) is 9674822229260668401085153192125
• The square root of 21308244165 is 145973.4365047285
• The cube root of 21308244165 is 2772.3574297975

Scales and comparisons

• 21,308,244,165 seconds is equal to 677 years, 27 weeks, 6 days, 4 hours, 42 minutes, 45 seconds.
• To count from 1 to 21,308,244,165 would take you about one thousand, three hundred fifty-five 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 21308244165 cubic inches would be around 231 feet tall.

Recreational maths with 21308244165

• 21308244165 backwards is 56144280312
• The number of decimal digits it has is: 11
• The sum of 21308244165's digits is 36
• More coming soon!