128917120
128,917,120 is an even composite number composed of four prime numbers multiplied together.
128917120 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 128917120:
27 × 5 × 173 × 41
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 17 × 17 × 17 × 41)See below for interesting mathematical facts about the number 128917120 from the Numbermatics database.
Names of 128917120
- Cardinal: 128917120 can be written as One hundred twenty-eight million, nine hundred seventeen thousand, one hundred twenty.
Scientific notation
- Scientific notation: 1.2891712 × 108
Factors of 128917120
Divisors of 128917120
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 4 5 8 10 16 17 20 32 34 40 41 64 68 80 82 85 128 136 160 164 170 205 272 289 320 328 340 410 544 578 640 656 680 697 820 1088 1156 1312 1360 1394 1445 1640 2176 2312 2624 2720 2788 2890 3280 3485 4624 4913 5248 5440 5576 5780 6560 6970 9248 9826 10880 11152 11560 11849 13120 13940 18496 19652 22304 23120 23698 24565 26240 27880 36992 39304 44608 46240 47396 49130 55760 59245 78608 89216 92480 94792 98260 111520 118490 157216 184960 189584 196520 201433 223040 236980 314432 379168 393040 402866 446080 473960 628864 758336 786080 805732 947920 1007165 1516672 1572160 1611464 1895840 2014330 3144320 3222928 3791680 4028660 6445856 7583360 8057320 12891712 16114640 25783424 32229280 64458560 128917120
- Sum of all divisors σ(n): 335437200
- Sum of proper divisors (its aliquot sum) s(n): 206520080
- 128917120 is an abundant number, because the sum of its proper divisors (206520080) is greater than itself. Its abundance is 77602960
Bases of 128917120
- Binary: 1111010111100011110100000002
- Hexadecimal: 0x7AF1E80
- Base-36: 24R534
Squares and roots of 128917120
- 128917120 squared (1289171202) is 16619623829094400
- 128917120 cubed (1289171203) is 2142554039530222256128000
-
The
square root of 128917120 is 11354.1675168195 -
The
cube root of 128917120 is 505.1692012183
Scales and comparisons
How big is 128917120?- 128,917,120 seconds is equal to 4 years, 5 weeks, 1 day, 2 hours, 18 minutes, 40 seconds.
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To count from 1 to 128,917,120 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 128917120 cubic inches would be around 42.1 feet tall.
Recreational maths with 128917120
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