21388607496

Names of 21388607496

• Cardinal: 21388607496 can be written as Twenty-one billion, three hundred eighty-eight million, six hundred seven thousand, four hundred ninety-six.

Scientific notation

• Scientific notation: 2.1388607496 × 10¹⁰

Factors of 21388607496

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1103

Divisors of 21388607496

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 19 24 27 36 38 53 54 57 72 76 106 107 108 114 152 159 171 212 214 216 228 318 321 342 424 428 456 477 513 636 642 684 856 919 954 963 1007 1026 1272 1284 1368 1431 1838 1908 1926 2014 2033 2052 2568 2757 2862 2889 3021 3676 3816 3852 4028 4066 4104 5514 5671 5724 5778 6042 6099 7352 7704 8056 8132 8271 9063 11028 11342 11448 11556 12084 12198 16264 16542 17013 17461 18126 18297 22056 22684 23112 24168 24396 24813 27189 33084 34026 34922 36252 36594 45368 48707 48792 49626 51039 52383 54378 54891 66168 68052 69844 72504 73188 97414 98333 99252 102078 104766 107749 108756 109782 136104 139688 146121 146376 153117 157149 194828 196666 198504 204156 209532 215498 217512 219564 292242 294999 306234 314298 323247 389656 393332 408312 419064 430996 438363 439128 471447 584484 589998 612468 628596 646494 786664 861992 876726 884997 925433 942894 969741 1168968 1179996 1224936 1257192 1292988 1315089 1753452 1769994 1850866 1868327 1885788 1939482 2359992 2585976 2630178 2654991 2776299 2909223 3506904 3539988 3701732 3736654 3771576 3878964 5211649 5260356 5309982 5552598 5604981 5818446 7079976 7403464 7473308 7757928 8328897 10423298 10520712 10619964 11105196 11209962 11636892 14946616 15634947 16657794 16814943 20846596 21239928 22210392 22419924 23273784 24986691 31269894 33315588 33629886 41693192 44839848 46904841 49973382 50444829 62539788 66631176 67259772 93809682 99021331 99946764 100889658 125079576 134519544 140714523 187619364 198042662 199893528 201779316 281429046 297063993 375238728 396085324 403558632 562858092 594127986 792170648 891191979 1125716184 1188255972 1782383958 2376511944 2673575937 3564767916 5347151874 7129535832 10694303748 21388607496
• Sum of all divisors σ(n): 64385280000
• Sum of proper divisors (its aliquot sum) s(n): 42996672504
• 21388607496 is an abundant number, because the sum of its proper divisors (42996672504) is greater than itself. Its abundance is 21608065008

Bases of 21388607496

• Binary: 10011111010110111000100000000001000₂
• Hexadecimal: 0x4FADC4008
• Base-36: 9TQ8360

Squares and roots of 21388607496

• 21388607496 squared (21388607496²) is 457472530617947390016
• 21388607496 cubed (21388607496³) is 9784700397589119058229853159936
• The square root of 21388607496 is 146248.4444224965
• The cube root of 21388607496 is 2775.8383418859

Scales and comparisons

• 21,388,607,496 seconds is equal to 680 years, 4 weeks, 5 days, 7 hours, 51 minutes, 36 seconds.
• To count from 1 to 21,388,607,496 would take you about one thousand, three hundred sixty 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 21388607496 cubic inches would be around 231.3 feet tall.

Recreational maths with 21388607496

• 21388607496 backwards is 69470688312
• 21388607496 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21388607496's digits is 54
• More coming soon!