145390245
145,390,245 is an odd composite number composed of seven prime numbers multiplied together.
145390245 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 145390245:
3 × 5 × 7 × 11 × 13 × 23 × 421
See below for interesting mathematical facts about the number 145390245 from the Numbermatics database.
Names of 145390245
- Cardinal: 145390245 can be written as One hundred forty-five million, three hundred ninety thousand, two hundred forty-five.
Scientific notation
- Scientific notation: 1.45390245 × 108
Factors of 145390245
Divisors of 145390245
- Number of divisors d(n): 128
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Complete list of divisors:
1 3 5 7 11 13 15 21 23 33 35 39 55 65 69 77 91 105 115 143 161 165 195 231 253 273 299 345 385 421 429 455 483 715 759 805 897 1001 1155 1263 1265 1365 1495 1771 2093 2105 2145 2415 2947 3003 3289 3795 4485 4631 5005 5313 5473 6279 6315 8841 8855 9683 9867 10465 13893 14735 15015 16419 16445 23023 23155 26565 27365 29049 31395 32417 38311 44205 48415 49335 60203 67781 69069 69465 82095 97251 106513 114933 115115 125879 145245 162085 180609 191555 203343 301015 319539 338905 345345 377637 421421 486255 532565 574665 629395 745591 881153 903045 1016715 1264263 1384669 1597695 1888185 2107105 2236773 2643459 3727955 4154007 4405765 6321315 6923345 9692683 11183865 13217295 20770035 29078049 48463415 145390245
- Sum of all divisors σ(n): 326688768
- Sum of proper divisors (its aliquot sum) s(n): 181298523
- 145390245 is an abundant number, because the sum of its proper divisors (181298523) is greater than itself. Its abundance is 35908278
Bases of 145390245
- Binary: 10001010101001111010101001012
- Hexadecimal: 0x8AA7AA5
- Base-36: 2EK7TX
Squares and roots of 145390245
- 145390245 squared (1453902452) is 21138323341160025
- 145390245 cubed (1453902453) is 3073306009460474618956125
-
The
square root of 145390245 is 12057.7877324159 -
The
cube root of 145390245 is 525.8296722819
Scales and comparisons
How big is 145390245?- 145,390,245 seconds is equal to 4 years, 32 weeks, 2 days, 18 hours, 10 minutes, 45 seconds.
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To count from 1 to 145,390,245 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 145390245 cubic inches would be around 43.8 feet tall.
Recreational maths with 145390245
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