128497824

Names of 128497824

• Cardinal: 128497824 can be written as One hundred twenty-eight million, four hundred ninety-seven thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 1.28497824 × 10⁸

Factors of 128497824

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4928

Divisors of 128497824

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 32 36 39 42 48 52 56 63 72 78 84 91 96 104 112 117 126 144 156 168 182 208 224 234 252 273 288 312 336 364 416 468 504 546 624 672 728 819 936 1008 1092 1248 1456 1638 1872 2016 2184 2912 3276 3744 4368 4903 6552 8736 9806 13104 14709 19612 26208 29418 34321 39224 44127 58836 63739 68642 78448 88254 102963 117672 127478 137284 156896 176508 191217 205926 235344 254956 274568 308889 353016 382434 411852 446173 470688 509912 549136 573651 617778 706032 764868 823704 892346 1019824 1098272 1147302 1235556 1338519 1412064 1529736 1647408 1784692 2039648 2294604 2471112 2677038 3059472 3294816 3569384 4015557 4589208 4942224 5354076 6118944 7138768 8031114 9178416 9884448 10708152 14277536 16062228 18356832 21416304 32124456 42832608 64248912 128497824
• Sum of all divisors σ(n): 449834112
• Sum of proper divisors (its aliquot sum) s(n): 321336288
• 128497824 is an abundant number, because the sum of its proper divisors (321336288) is greater than itself. Its abundance is 192838464

Bases of 128497824

• Binary: 111101010001011100010100000₂
• Hexadecimal: 0x7A8B8A0
• Base-36: 24I5K0

Squares and roots of 128497824

• 128497824 squared (128497824²) is 16511690772734976
• 128497824 cubed (128497824³) is 2121716334857322944692224
• The square root of 128497824 is 11335.6880691029
• The cube root of 128497824 is 504.6209278247

Scales and comparisons

• 128,497,824 seconds is equal to 4 years, 4 weeks, 3 days, 5 hours, 50 minutes, 24 seconds.
• To count from 1 to 128,497,824 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 128497824 cubic inches would be around 42.1 feet tall.

Recreational maths with 128497824

• 128497824 backwards is 428794821
• The number of decimal digits it has is: 9
• The sum of 128497824's digits is 45
• More coming soon!