128718135
128,718,135 is an odd composite number composed of six prime numbers multiplied together.
128718135 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 128718135:
32 × 5 × 7 × 13 × 17 × 432
(3 × 3 × 5 × 7 × 13 × 17 × 43 × 43)See below for interesting mathematical facts about the number 128718135 from the Numbermatics database.
Names of 128718135
- Cardinal: 128718135 can be written as One hundred twenty-eight million, seven hundred eighteen thousand, one hundred thirty-five.
Scientific notation
- Scientific notation: 1.28718135 × 108
Factors of 128718135
Divisors of 128718135
- Number of divisors d(n): 144
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Complete list of divisors:
1 3 5 7 9 13 15 17 21 35 39 43 45 51 63 65 85 91 105 117 119 129 153 195 215 221 255 273 301 315 357 387 455 559 585 595 645 663 731 765 819 903 1071 1105 1365 1505 1547 1677 1785 1849 1935 1989 2193 2709 2795 3315 3655 3913 4095 4515 4641 5031 5117 5355 5547 6579 7735 8385 9245 9503 9945 10965 11739 12943 13545 13923 15351 16641 19565 23205 24037 25155 25585 27735 28509 31433 32895 35217 38829 46053 47515 58695 64715 66521 69615 72111 76755 83205 85527 94299 116487 120185 142545 157165 168259 176085 194145 199563 216333 220031 230265 282897 332605 360555 408629 427635 471495 504777 582435 598689 660093 841295 997815 1081665 1100155 1225887 1414485 1514331 1980279 2043145 2523885 2860403 2993445 3300465 3677661 6129435 7571655 8581209 9901395 14302015 18388305 25743627 42906045 128718135
- Sum of all divisors σ(n): 297670464
- Sum of proper divisors (its aliquot sum) s(n): 168952329
- 128718135 is an abundant number, because the sum of its proper divisors (168952329) is greater than itself. Its abundance is 40234194
Bases of 128718135
- Binary: 1111010110000010101001101112
- Hexadecimal: 0x7AC1537
- Base-36: 24MVJR
Squares and roots of 128718135
- 128718135 squared (1287181352) is 16568358277878225
- 128718135 cubed (1287181353) is 2132648177540296879110375
-
The
square root of 128718135 is 11345.4014913533 -
The
cube root of 128718135 is 504.9091559625
Scales and comparisons
How big is 128718135?- 128,718,135 seconds is equal to 4 years, 4 weeks, 5 days, 19 hours, 2 minutes, 15 seconds.
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To count from 1 to 128,718,135 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 128718135 cubic inches would be around 42.1 feet tall.
Recreational maths with 128718135
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