21363490663561280

Names of 21363490663561280

• Cardinal: 21363490663561280 can be written as Twenty-one quadrillion, three hundred sixty-three trillion, four hundred ninety billion, six hundred sixty-three million, five hundred sixty-one thousand, two hundred eighty.

Scientific notation

• Scientific notation: 2.136349066356128 × 10¹⁶

Factors of 21363490663561280

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 165659822194

Divisors of 21363490663561280

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 31 32 40 52 62 64 65 80 104 124 130 155 160 208 248 260 310 320 403 416 496 520 620 806 832 992 1040 1240 1612 1984 2015 2080 2480 3224 4030 4160 4960 6448 8060 9920 12896 16120 25792 32240 64480 128960 165659822143 331319644286 662639288572 828299110715 1325278577144 1656598221430 2153577687859 2650557154288 3313196442860 4307155375718 5135454486433 5301114308576 6626392885720 8614310751436 10270908972866 10602228617152 10767888439295 13252785771440 17228621502872 20541817945732 21535776878590 25677272432165 26505571542880 34457243005744 41083635891464 43071553757180 51354544864330 53011143085760 66760908323629 68914486011488 82167271782928 86143107514360 102709089728660 133521816647258 137828972022976 164334543565856 172286215028720 205418179457320 267043633294516 328669087131712 333804541618145 344572430057440 410836358914640 534087266589032 667609083236290 689144860114880 821672717829280 1068174533178064 1335218166472580 1643345435658560 2136349066356128 2670436332945160 4272698132712256 5340872665890320 10681745331780640 21363490663561280
• Sum of all divisors σ(n): 56552287444230144
• Sum of proper divisors (its aliquot sum) s(n): 35188796780668864
• 21363490663561280 is an abundant number, because the sum of its proper divisors (35188796780668864) is greater than itself. Its abundance is 13825306117107584

Bases of 21363490663561280

• Binary: 1001011111001011111101101001000001010011111100001000000₂
• Hexadecimal: 0x4BE5FB4829F840
• Base-36: 5UCQ44G3N7K

Squares and roots of 21363490663561280

• 21363490663561280 squared (21363490663561280²) is 456398733332069979647972315238400
• 21363490663561280 cubed (21363490663561280³) is 9750270078400871369716680821654864920156209152000
• The square root of 21363490663561280 is 146162548.7721163133
• The cube root of 21363490663561280 is 277475.1352384957

Scales and comparisons

• 21,363,490,663,561,280 seconds is equal to 679,292,921 years, 25 weeks, 1 day, 20 hours, 21 minutes, 20 seconds.
• To count from 1 to 21,363,490,663,561,280 would take you about two billion, thirty-seven million, eight hundred seventy-eight thousand, seven hundred sixty-four 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 21363490663561280 cubic inches would be around 23122.9 feet tall.

Recreational maths with 21363490663561280

• 21363490663561280 backwards is 08216536609436312
• 21363490663561280 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21363490663561280's digits is 65
• More coming soon!