128400140
128,400,140 is an even composite number composed of six prime numbers multiplied together.
128400140 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 128400140:
22 × 5 × 11 × 31 × 67 × 281
(2 × 2 × 5 × 11 × 31 × 67 × 281)See below for interesting mathematical facts about the number 128400140 from the Numbermatics database.
Names of 128400140
- Cardinal: 128400140 can be written as One hundred twenty-eight million, four hundred thousand, one hundred forty.
Scientific notation
- Scientific notation: 1.2840014 × 108
Factors of 128400140
Divisors of 128400140
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 10 11 20 22 31 44 55 62 67 110 124 134 155 220 268 281 310 335 341 562 620 670 682 737 1124 1340 1364 1405 1474 1705 2077 2810 2948 3091 3410 3685 4154 5620 6182 6820 7370 8308 8711 10385 12364 14740 15455 17422 18827 20770 22847 30910 34844 37654 41540 43555 45694 61820 75308 87110 91388 94135 95821 114235 174220 188270 191642 207097 228470 376540 383284 414194 456940 479105 583637 828388 958210 1035485 1167274 1916420 2070970 2334548 2918185 4141940 5836370 6420007 11672740 12840014 25680028 32100035 64200070 128400140
- Sum of all divisors σ(n): 309270528
- Sum of proper divisors (its aliquot sum) s(n): 180870388
- 128400140 is an abundant number, because the sum of its proper divisors (180870388) is greater than itself. Its abundance is 52470248
Bases of 128400140
- Binary: 1111010011100111011000011002
- Hexadecimal: 0x7A73B0C
- Base-36: 24G26K
Squares and roots of 128400140
- 128400140 squared (1284001402) is 16486595952019600
- 128400140 cubed (1284001403) is 2116881228362749922744000
-
The
square root of 128400140 is 11331.3785569101 -
The
cube root of 128400140 is 504.4930245253
Scales and comparisons
How big is 128400140?- 128,400,140 seconds is equal to 4 years, 4 weeks, 2 days, 2 hours, 42 minutes, 20 seconds.
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To count from 1 to 128,400,140 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 128400140 cubic inches would be around 42 feet tall.
Recreational maths with 128400140
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