128713984
128,713,984 is an even composite number composed of four prime numbers multiplied together.
128713984 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 128713984:
28 × 72 × 31 × 331
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 × 31 × 331)See below for interesting mathematical facts about the number 128713984 from the Numbermatics database.
Names of 128713984
- Cardinal: 128713984 can be written as One hundred twenty-eight million, seven hundred thirteen thousand, nine hundred eighty-four.
Scientific notation
- Scientific notation: 1.28713984 × 108
Factors of 128713984
Divisors of 128713984
- Number of divisors d(n): 108
-
Complete list of divisors:
1 2 4 7 8 14 16 28 31 32 49 56 62 64 98 112 124 128 196 217 224 248 256 331 392 434 448 496 662 784 868 896 992 1324 1519 1568 1736 1792 1984 2317 2648 3038 3136 3472 3968 4634 5296 6076 6272 6944 7936 9268 10261 10592 12152 12544 13888 16219 18536 20522 21184 24304 27776 32438 37072 41044 42368 48608 55552 64876 71827 74144 82088 84736 97216 129752 143654 148288 164176 194432 259504 287308 296576 328352 388864 502789 519008 574616 593152 656704 1005578 1038016 1149232 1313408 2011156 2076032 2298464 2626816 4022312 4152064 4596928 8044624 9193856 16089248 18387712 32178496 64356992 128713984
- Sum of all divisors σ(n): 309445248
- Sum of proper divisors (its aliquot sum) s(n): 180731264
- 128713984 is an abundant number, because the sum of its proper divisors (180731264) is greater than itself. Its abundance is 52017280
Bases of 128713984
- Binary: 1111010110000000101000000002
- Hexadecimal: 0x7AC0500
- Base-36: 24MSCG
Squares and roots of 128713984
- 128713984 squared (1287139842) is 16567289677152256
- 128713984 cubed (1287139843) is 2132441858428340644347904
-
The
square root of 128713984 is 11345.2185523241 -
The
cube root of 128713984 is 504.9037283399
Scales and comparisons
How big is 128713984?- 128,713,984 seconds is equal to 4 years, 4 weeks, 5 days, 17 hours, 53 minutes, 4 seconds.
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To count from 1 to 128,713,984 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 128713984 cubic inches would be around 42.1 feet tall.
Recreational maths with 128713984
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