21621641076

Names of 21621641076

• Cardinal: 21621641076 can be written as Twenty-one billion, six hundred twenty-one million, six hundred forty-one thousand and seventy-six.

Scientific notation

• Scientific notation: 2.1621641076 × 10¹⁰

Factors of 21621641076

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 287

Divisors of 21621641076

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 53 63 71 84 106 126 142 151 159 212 213 252 284 302 318 371 426 453 477 497 604 636 639 742 852 906 954 994 1057 1113 1278 1359 1484 1491 1812 1908 1988 2114 2226 2556 2718 2982 3171 3339 3763 4228 4452 4473 5436 5964 6342 6678 7526 8003 8946 9513 10721 11289 12684 13356 15052 16006 17892 19026 21442 22578 22801 24009 26341 32012 32163 33867 38052 42884 45156 45602 48018 52682 56021 64326 67734 68403 72027 75047 79023 91204 96036 96489 105364 112042 128652 135468 136806 144054 150094 158046 159607 168063 192978 205209 224084 225141 237069 273612 288108 300188 316092 319214 336126 385956 410418 450282 474138 478821 504189 568213 638428 672252 675423 820836 900564 948276 957642 1008378 1136426 1208453 1350846 1436463 1618871 1704639 1915284 2016756 2272852 2416906 2701692 2872926 3237742 3409278 3625359 3977491 4833812 4856613 5113917 5745852 6475484 6818556 7250718 7954982 8459171 9713226 10227834 10876077 11332097 11932473 14501436 14569839 15909964 16918342 19426452 20455668 21752154 22664194 23864946 25377513 29139678 33836684 33996291 35797419 43504308 45328388 47729892 50755026 58279356 67992582 71594838 76132539 85800163 101510052 101988873 135985164 143189676 152265078 171600326 203977746 257400489 304530156 343200652 407955492 514800978 600601141 772201467 1029601956 1201202282 1544402934 1801803423 2402404564 3088805868 3603606846 5405410269 7207213692 10810820538 21621641076
• Sum of all divisors σ(n): 64967640192
• Sum of proper divisors (its aliquot sum) s(n): 43345999116
• 21621641076 is an abundant number, because the sum of its proper divisors (43345999116) is greater than itself. Its abundance is 21724358040

Bases of 21621641076

• Binary: 10100001000110000000000111101110100₂
• Hexadecimal: 0x508C00F74
• Base-36: 9XKYT10

Squares and roots of 21621641076

• 21621641076 squared (21621641076²) is 467495362819370437776
• 21621641076 cubed (21621641076³) is 10108016939574823025877663686976
• The square root of 21621641076 is 147042.9905707851
• The cube root of 21621641076 is 2785.8830728409

Scales and comparisons

• 21,621,641,076 seconds is equal to 687 years, 26 weeks, 11 hours, 24 minutes, 36 seconds.
• To count from 1 to 21,621,641,076 would take you about one thousand, three hundred seventy-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 21621641076 cubic inches would be around 232.2 feet tall.

Recreational maths with 21621641076

• 21621641076 backwards is 67014612612
• 21621641076 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21621641076's digits is 36
• More coming soon!