145701990
145,701,990 is an even composite number composed of five prime numbers multiplied together.
145701990 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 145701990:
2 × 34 × 5 × 72 × 3671
(2 × 3 × 3 × 3 × 3 × 5 × 7 × 7 × 3671)See below for interesting mathematical facts about the number 145701990 from the Numbermatics database.
Names of 145701990
- Cardinal: 145701990 can be written as One hundred forty-five million, seven hundred one thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.4570199 × 108
Factors of 145701990
Divisors of 145701990
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 49 54 63 70 81 90 98 105 126 135 147 162 189 210 245 270 294 315 378 405 441 490 567 630 735 810 882 945 1134 1323 1470 1890 2205 2646 2835 3671 3969 4410 5670 6615 7342 7938 11013 13230 18355 19845 22026 25697 33039 36710 39690 51394 55065 66078 77091 99117 110130 128485 154182 165195 179879 198234 231273 256970 297351 330390 359758 385455 462546 495585 539637 594702 693819 770910 899395 991170 1079274 1156365 1387638 1486755 1618911 1798790 2081457 2312730 2698185 2973510 3237822 3469095 4162914 4856733 5396370 6938190 8094555 9713466 10407285 14570199 16189110 20814570 24283665 29140398 48567330 72850995 145701990
- Sum of all divisors σ(n): 455864112
- Sum of proper divisors (its aliquot sum) s(n): 310162122
- 145701990 is an abundant number, because the sum of its proper divisors (310162122) is greater than itself. Its abundance is 164460132
Bases of 145701990
- Binary: 10001010111100111100011001102
- Hexadecimal: 0x8AF3C66
- Base-36: 2EQWDI
Squares and roots of 145701990
- 145701990 squared (1457019902) is 21229069889960100
- 145701990 cubed (1457019903) is 3093117728816267590599000
-
The
square root of 145701990 is 12070.7079328431 -
The
cube root of 145701990 is 526.2052310601
Scales and comparisons
How big is 145701990?- 145,701,990 seconds is equal to 4 years, 32 weeks, 6 days, 8 hours, 46 minutes, 30 seconds.
-
To count from 1 to 145,701,990 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 145701990 cubic inches would be around 43.9 feet tall.
Recreational maths with 145701990
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