21397265389968992304400

Names of 21397265389968992304400

• Cardinal: 21397265389968992304400 can be written as Twenty-one sextillion, three hundred ninety-seven quintillion, two hundred sixty-five quadrillion, three hundred eighty-nine trillion, nine hundred sixty-eight billion, nine hundred ninety-two million, three hundred four thousand, four hundred.

Scientific notation

• Scientific notation: 2.13972653899689923044 × 10²²

Factors of 21397265389968992304400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 17373117

Divisors of 21397265389968992304400

• Number of divisors d(n): 135
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 421 842 1684 2105 3368 4210 6736 8420 10525 16840 21050 33680 42100 84200 168400 177241 354482 708964 886205 1417928 1772410 2835856 3544820 4431025 7089640 8862050 14179280 17372689 17724100 34745378 35448200 69490756 70896400 86863445 138981512 173726890 277963024 347453780 434317225 694907560 868634450 1389815120 1737268900 3474537800 6949075600 7313902069 14627804138 29255608276 36569510345 58511216552 73139020690 117022433104 146278041380 182847551725 292556082760 365695103450 585112165520 731390206900 1462780413800 2925560827600 3079152771049 6158305542098 12316611084196 15395763855245 24633222168392 30791527710490 49266444336784 61583055420980 76978819276225 123166110841960 153957638552450 246332221683920 301810323090721 307915277104900 603620646181442 615830554209800 1207241292362884 1231661108419600 1509051615453605 2414482584725768 3018103230907210 4828965169451536 6036206461814420 7545258077268025 12072412923628840 15090516154536050 24144825847257680 30181032309072100 60362064618144200 120724129236288400 127062146021193541 254124292042387082 508248584084774164 635310730105967705 1016497168169548328 1270621460211935410 2032994336339096656 2541242920423870820 3176553650529838525 5082485840847741640 6353107301059677050 10164971681695483280 12706214602119354100 25412429204238708200 50824858408477416400 53493163474922480761 106986326949844961522 213972653899689923044 267465817374612403805 427945307799379846088 534931634749224807610 855890615598759692176 1069863269498449615220 1337329086873062019025 2139726538996899230440 2674658173746124038050 4279453077993798460880 5349316347492248076100 10698632694984496152200 21397265389968992304400
• Sum of all divisors σ(n): 51529329827558699941773
• Sum of proper divisors (its aliquot sum) s(n): 30132064437589707637373
• 21397265389968992304400 is an abundant number, because the sum of its proper divisors (30132064437589707637373) is greater than itself. Its abundance is 8734799047620715332973

Bases of 21397265389968992304400

• Binary: 100100001111111001010110101011100001001101100100101111100001111110100010000₂
• Hexadecimal: 0x487F2B5709B25F0FD10
• Base-36: 3HFQE2X93807MDS

Squares and roots of 21397265389968992304400

• 21397265389968992304400 squared (21397265389968992304400²) is 457842966168764892316229890909186422259360000
• 21397265389968992304400 cubed (21397265389968992304400³) is 9796587454043657274077580620025701830671196071725328700869184000000
• 21397265389968992304400 is a perfect square number. Its square root is 146278041380
• The cube root of 21397265389968992304400 is 27762128.3520779225

Scales and comparisons

• 21,397,265,389,968,992,304,400 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 21,397,265,389,968,992,304,400 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 21397265389968992304400 cubic inches would be around 2313510.7 feet tall.

Recreational maths with 21397265389968992304400

• 21397265389968992304400 backwards is 00440329986998356279312
• The number of decimal digits it has is: 23
• The sum of 21397265389968992304400's digits is 109
• More coming soon!