128320038

Names of 128320038

• Cardinal: 128320038 can be written as One hundred twenty-eight million, three hundred twenty thousand and thirty-eight.

Scientific notation

• Scientific notation: 1.28320038 × 10⁸

Factors of 128320038

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 150

Divisors of 128320038

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 27 33 42 54 63 66 77 81 99 126 127 154 162 189 198 231 243 254 297 378 381 462 486 567 594 693 729 762 889 891 1134 1143 1386 1397 1458 1701 1778 1782 2079 2187 2286 2667 2673 2794 3402 3429 4158 4191 4374 5103 5334 5346 6237 6561 6858 8001 8019 8382 9779 10206 10287 12474 12573 13122 15309 16002 16038 18711 19558 20574 24003 24057 25146 29337 30618 30861 37422 37719 45927 48006 48114 56133 58674 61722 72009 72171 75438 88011 91854 92583 112266 113157 144018 144342 168399 176022 185166 216027 226314 264033 277749 336798 339471 432054 505197 528066 555498 648081 678942 792099 833247 1010394 1018413 1296162 1584198 1666494 1944243 2036826 2376297 3055239 3888486 4752594 5832729 6110478 7128891 9165717 11665458 14257782 18331434 21386673 42773346 64160019 128320038
• Sum of all divisors σ(n): 362778624
• Sum of proper divisors (its aliquot sum) s(n): 234458586
• 128320038 is an abundant number, because the sum of its proper divisors (234458586) is greater than itself. Its abundance is 106138548

Bases of 128320038

• Binary: 111101001100000001000100110₂
• Hexadecimal: 0x7A60226
• Base-36: 24ECDI

Squares and roots of 128320038

• 128320038 squared (128320038²) is 16466032152321444
• 128320038 cubed (128320038³) is 2112921871495109482294872
• The square root of 128320038 is 11327.8434840883
• The cube root of 128320038 is 504.3880939375

Scales and comparisons

• 128,320,038 seconds is equal to 4 years, 4 weeks, 1 day, 4 hours, 27 minutes, 18 seconds.
• To count from 1 to 128,320,038 would take you about six 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 128320038 cubic inches would be around 42 feet tall.

Recreational maths with 128320038

• 128320038 backwards is 830023821
• 128320038 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 128320038's digits is 27
• More coming soon!