397638187989203906

Names of 397638187989203906

• Cardinal: 397638187989203906 can be written as Three hundred ninety-seven quadrillion, six hundred thirty-eight trillion, one hundred eighty-seven billion, nine hundred eighty-nine million, two hundred three thousand, nine hundred six.

Scientific notation

• Scientific notation: 3.97638187989203906 × 10¹⁷

Factors of 397638187989203906

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 183

Divisors of 397638187989203906

• Number of divisors d(n): 140
• Complete list of divisors:
  1 2 23 46 61 97 122 194 529 1058 1403 2231 2806 3721 4462 5917 7442 11834 12167 24334 32269 51313 64538 85583 102626 136091 171166 226981 272182 279841 360937 453962 559682 721874 742187 1180199 1484374 1968409 2360398 3130093 3936818 5220563 6260186 6436343 8301551 10441126 12872686 13845841 16603102 17070301 22017157 27144577 27691682 34140602 44034314 45273407 54289154 71992139 90546814 120072949 143984278 148035889 190935673 240145898 296071778 318454343 381871346 392616923 506394611 624325271 636908686 785233846 1012789222 1041288361 1248650542 1343046577 1655819197 2082576722 2686093154 2761677827 3311638394 4391520479 5523355654 7324449889 8783040958 9030189229 11647076053 14359481233 14648899778 18060378458 23294152106 23949632303 28718962466 30890071271 38083841531 47899264606 61780142542 63518590021 76167683062 101004971017 127037180042 168462347447 202009942034 267882749219 336924694894 535765498438 550841542969 710471639233 875928355213 1101683085938 1420943278466 1460927570483 1751856710426 2323114333391 2921855140966 3874633991281 4646228666782 6161303232037 7749267982562 12322606464074 16340847702359 32681695404718 33601334121109 53431629667993 67202668242218 89116581799463 106863259335986 141709974336851 178233163598926 283419948673702 375839497154257 751678994308514 2049681381387649 3259329409747573 4099362762775298 6518658819495146 8644308434547911 17288616869095822 198819093994601953 397638187989203906
• Sum of all divisors σ(n): 640497480536522910
• Sum of proper divisors (its aliquot sum) s(n): 242859292547319004
• 397638187989203906 is a deficient number, because the sum of its proper divisors (242859292547319004) is less than itself. Its deficiency is 154778895441884902

Bases of 397638187989203906

• Binary: 10110000100101100011101001101000000001110011111101111000010₂
• Hexadecimal: 0x584B1D34039FBC2
• Base-36: 30RAZ1QN02IQ

Squares and roots of 397638187989203906

• 397638187989203906 squared (397638187989203906²) is 158116128547337465488841211645656836
• 397638187989203906 cubed (397638187989203906³) is 62873010847431305414782214891364196664852762106801416
• The square root of 397638187989203906 is 630585591.3269854491
• The cube root of 397638187989203906 is 735353.2711740253

Scales and comparisons

• 397,638,187,989,203,906 seconds is equal to 12,643,664,402 years, 19 weeks, 6 days, 15 hours, 18 minutes, 26 seconds.
• To count from 1 to 397,638,187,989,203,906 would take you about thirty-seven billion, nine hundred thirty million, nine hundred ninety-three thousand, two hundred seven 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 397638187989203906 cubic inches would be around 61279.4 feet tall.

Recreational maths with 397638187989203906

• 397638187989203906 backwards is 609302989781836793
• The number of decimal digits it has is: 18
• The sum of 397638187989203906's digits is 98
• More coming soon!