75142890
75,142,890 is an even composite number composed of five prime numbers multiplied together.
75142890 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 75142890:
2 × 35 × 5 × 172 × 107
(2 × 3 × 3 × 3 × 3 × 3 × 5 × 17 × 17 × 107)See below for interesting mathematical facts about the number 75142890 from the Numbermatics database.
Names of 75142890
- Cardinal: 75142890 can be written as Seventy-five million, one hundred forty-two thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 7.514289 × 107
Factors of 75142890
Divisors of 75142890
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 9 10 15 17 18 27 30 34 45 51 54 81 85 90 102 107 135 153 162 170 214 243 255 270 289 306 321 405 459 486 510 535 578 642 765 810 867 918 963 1070 1215 1377 1445 1530 1605 1734 1819 1926 2295 2430 2601 2754 2889 2890 3210 3638 4131 4335 4590 4815 5202 5457 5778 6885 7803 8262 8667 8670 9095 9630 10914 13005 13770 14445 15606 16371 17334 18190 20655 23409 26001 26010 27285 28890 30923 32742 39015 41310 43335 46818 49113 52002 54570 61846 70227 78030 81855 86670 92769 98226 117045 130005 140454 147339 154615 163710 185538 234090 245565 260010 278307 294678 309230 351135 442017 463845 491130 556614 702270 736695 834921 884034 927690 1391535 1473390 1669842 2210085 2504763 2783070 4174605 4420170 5009526 7514289 8349210 12523815 15028578 25047630 37571445 75142890
- Sum of all divisors σ(n): 217238112
- Sum of proper divisors (its aliquot sum) s(n): 142095222
- 75142890 is an abundant number, because the sum of its proper divisors (142095222) is greater than itself. Its abundance is 66952332
Bases of 75142890
- Binary: 1000111101010010110111010102
- Hexadecimal: 0x47A96EA
- Base-36: 18QKMI
Squares and roots of 75142890
- 75142890 squared (751428902) is 5646453917552100
- 75142890 cubed (751428903) is 424290865616686519569000
-
The
square root of 75142890 is 8668.4998702197 -
The
cube root of 75142890 is 421.9839807341
Scales and comparisons
How big is 75142890?- 75,142,890 seconds is equal to 2 years, 20 weeks, 1 day, 17 hours, 1 minute, 30 seconds.
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To count from 1 to 75,142,890 would take you about three 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 75142890 cubic inches would be around 35.2 feet tall.
Recreational maths with 75142890
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