21138939478125

Names of 21138939478125

• Cardinal: 21138939478125 can be written as Twenty-one trillion, one hundred thirty-eight billion, nine hundred thirty-nine million, four hundred seventy-eight thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 2.1138939478125 × 10¹³

Factors of 21138939478125

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 99

Divisors of 21138939478125

• Number of divisors d(n): 576
• Complete list of divisors:
  1 3 5 7 9 15 17 21 25 27 35 45 49 51 63 67 75 85 105 119 125 135 147 153 175 189 201 225 245 255 315 335 357 375 425 441 459 469 525 595 603 625 675 735 765 833 875 945 1005 1071 1125 1139 1225 1275 1323 1407 1575 1675 1785 1809 1875 2125 2205 2295 2345 2499 2625 2975 3015 3125 3213 3283 3375 3417 3675 3825 4165 4221 4375 4489 4725 5025 5355 5625 5695 6125 6375 6615 7035 7497 7875 7973 8375 8925 9045 9375 9849 10251 10625 11025 11475 11725 12495 12663 13125 13467 14875 15075 16065 16415 16875 17085 18375 19125 20825 21105 21875 22445 22491 23625 23919 25125 26775 28125 28475 29547 30625 30753 31423 31875 33075 35175 37485 39375 39865 40401 41875 44625 45225 49245 51255 53125 55125 55811 57375 58625 62475 63315 65625 67335 71757 74375 75375 76313 80325 82075 84375 85425 88641 91875 94269 95625 104125 105525 112225 112455 118125 119595 121203 125625 133875 142375 147735 153125 153765 157115 159375 165375 167433 175875 187425 196875 199325 202005 209375 215271 219961 223125 226125 228939 246225 256275 275625 279055 282807 286875 293125 300763 312375 316575 336675 358785 371875 376875 381565 401625 410375 427125 443205 459375 471345 478125 502299 520625 527625 534191 561125 562275 590625 597975 606015 628125 659883 669375 686817 711875 738675 768825 785575 826875 837165 848421 879375 902289 937125 996625 1010025 1076355 1099805 1115625 1130625 1144695 1231125 1281375 1378125 1395275 1414035 1434375 1465625 1503815 1506897 1561875 1582875 1602573 1683375 1793925 1884375 1907825 1979649 2008125 2051875 2060451 2105341 2135625 2216025 2356725 2511495 2603125 2638125 2670955 2706867 2805625 2811375 2989875 3030075 3299415 3346875 3434085 3559375 3693375 3739337 3844125 3927875 4134375 4185825 4242105 4396875 4511445 4685625 4807719 4983125 5050125 5112971 5381775 5499025 5653125 5723475 5938947 6155625 6316023 6406875 6976375 7070175 7519075 7534485 7809375 7914375 8012865 8120601 8416875 8969625 9539125 9898245 10040625 10259375 10302255 10526705 10678125 11080125 11218011 11783625 12557475 13190625 13354775 13534335 14028125 14056875 14423157 14737387 14949375 15150375 15338913 16497075 17170425 18466875 18696685 18948069 19220625 19639375 20929125 21210525 22557225 23428125 24038595 24915625 25250625 25564855 26908875 27495125 28617375 29694735 30778125 31580115 32034375 33654033 34881875 35350875 35790797 37595375 37672425 39571875 40064325 40603005 42084375 44212161 44848125 46016739 47695625 49491225 51511275 52633525 55400625 56090055 56844207 58918125 62787375 66773875 67671675 70284375 72115785 73686935 74746875 75751875 76694565 82485375 85852125 92334375 93483425 94740345 96103125 98196875 100962099 104645625 106052625 107372391 112786125 120192975 126253125 127824275 132636483 134544375 137475625 138050217 143086875 148473675 157900575 168270165 174409375 176754375 178953985 187976875 188362125 200321625 203015025 221060805 224240625 230083695 238478125 247456125 250535579 257556375 263167625 277003125 280450275 284221035 294590625 313936875 322117173 333869375 338358375 360578925 368434675 378759375 383472825 397909449 412426875 429260625 467417125 473701725 504810495 523228125 530263125 536861955 563930625 600964875 639121375 663182415 672721875 687378125 690251085 715434375 742368375 751606737 789502875 841350825 883771875 894769925 939884375 941810625 966351519 1001608125 1015075125 1105304025 1150418475 1237280625 1252677895 1287781875 1315838125 1402251375 1421105175 1569684375 1610585865 1669346875 1691791875 1802894625 1842173375 1917364125 1989547245 2062134375 2146303125 2254820211 2337085625 2368508625 2524052475 2651315625 2684309775 2819653125 3004824375 3195606875 3315912075 3451255425 3711841875 3758033685 3947514375 4206754125 4473849625 4709053125 4831757595 5008040625 5075375625 5526520125 5752092375 6186403125 6263389475 6438909375 6579190625 6764460633 7011256875 7105525875 8052929325 8458959375 9014473125 9210866875 9586820625 9947736225 11274101055 11685428125 11842543125 12620262375 13421548875 15024121875 15978034375 16579560375 17256277125 18559209375 18790168425 19737571875 21033770625 22369248125 24158787975 25376878125 27632600625 28760461875 31316947375 33822303165 35056284375 35527629375 40264646625 45072365625 46054334375 47934103125 49738681125 56370505275 59212715625 63101311875 67107744375 82897801875 86281385625 93950842125 105168853125 111846240625 120793939875 138163003125 143802309375 156584736875 169111515825 177638146875 201323233125 248693405625 281852526375 315506559375 335538721875 414489009375 431406928125 469754210625 603969699375 782923684375 845557579125 1006616165625 1243467028125 1409262631875 2348771053125 3019848496875 4227787895625 7046313159375 21138939478125
• Sum of all divisors σ(n): 48943479916800
• Sum of proper divisors (its aliquot sum) s(n): 27804540438675
• 21138939478125 is an abundant number, because the sum of its proper divisors (27804540438675) is greater than itself. Its abundance is 6665600960550

Bases of 21138939478125

• Binary: 100110011100111001010111110101000000001101101₂
• Hexadecimal: 0x1339CAFA806D
• Base-36: 7HR3ERV59

Squares and roots of 21138939478125

• 21138939478125 squared (21138939478125²) is 446854762259831647353515625
• 21138939478125 cubed (21138939478125³) is 9446035774922516549157484623321533203125
• The square root of 21138939478125 is 4597710.2429497447
• The cube root of 21138939478125 is 27649.9530656683

Scales and comparisons

• 21,138,939,478,125 seconds is equal to 672,152 years, 46 weeks, 1 day, 8 hours, 48 minutes, 45 seconds.
• To count from 1 to 21,138,939,478,125 would take you about one million, six hundred eighty thousand, three hundred eighty-two 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 21138939478125 cubic inches would be around 2304.2 feet tall.

Recreational maths with 21138939478125

• 21138939478125 backwards is 52187493983112
• 21138939478125 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21138939478125's digits is 63
• More coming soon!