128996440
128,996,440 is an even composite number composed of five prime numbers multiplied together.
128996440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 128996440:
23 × 5 × 67 × 127 × 379
(2 × 2 × 2 × 5 × 67 × 127 × 379)See below for interesting mathematical facts about the number 128996440 from the Numbermatics database.
Names of 128996440
- Cardinal: 128996440 can be written as One hundred twenty-eight million, nine hundred ninety-six thousand, four hundred forty.
Scientific notation
- Scientific notation: 1.2899644 × 108
Factors of 128996440
Divisors of 128996440
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 4 5 8 10 20 40 67 127 134 254 268 335 379 508 536 635 670 758 1016 1270 1340 1516 1895 2540 2680 3032 3790 5080 7580 8509 15160 17018 25393 34036 42545 48133 50786 68072 85090 96266 101572 126965 170180 192532 203144 240665 253930 340360 385064 481330 507860 962660 1015720 1925320 3224911 6449822 12899644 16124555 25799288 32249110 64498220 128996440
- Sum of all divisors σ(n): 297676800
- Sum of proper divisors (its aliquot sum) s(n): 168680360
- 128996440 is an abundant number, because the sum of its proper divisors (168680360) is greater than itself. Its abundance is 39683920
Bases of 128996440
- Binary: 1111011000001010100010110002
- Hexadecimal: 0x7B05458
- Base-36: 24SUAG
Squares and roots of 128996440
- 128996440 squared (1289964402) is 16640081532673600
- 128996440 cubed (1289964403) is 2146511279024638081984000
-
The
square root of 128996440 is 11357.6599702579 -
The
cube root of 128996440 is 505.2727866479
Scales and comparisons
How big is 128996440?- 128,996,440 seconds is equal to 4 years, 5 weeks, 2 days, 20 minutes, 40 seconds.
-
To count from 1 to 128,996,440 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 128996440 cubic inches would be around 42.1 feet tall.
Recreational maths with 128996440
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