145155240
145,155,240 is an even composite number composed of five prime numbers multiplied together.
145155240 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 145155240:
23 × 34 × 5 × 71 × 631
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 71 × 631)See below for interesting mathematical facts about the number 145155240 from the Numbermatics database.
Names of 145155240
- Cardinal: 145155240 can be written as One hundred forty-five million, one hundred fifty-five thousand, two hundred forty.
Scientific notation
- Scientific notation: 1.4515524 × 108
Factors of 145155240
Divisors of 145155240
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 71 72 81 90 108 120 135 142 162 180 213 216 270 284 324 355 360 405 426 540 568 631 639 648 710 810 852 1065 1080 1262 1278 1420 1620 1704 1893 1917 2130 2524 2556 2840 3155 3195 3240 3786 3834 4260 5048 5112 5679 5751 6310 6390 7572 7668 8520 9465 9585 11358 11502 12620 12780 15144 15336 17037 18930 19170 22716 23004 25240 25560 28395 28755 34074 37860 38340 44801 45432 46008 51111 56790 57510 68148 75720 76680 85185 89602 102222 113580 115020 134403 136296 170370 179204 204444 224005 227160 230040 255555 268806 340740 358408 403209 408888 448010 511110 537612 672015 681480 806418 896020 1022220 1075224 1209627 1344030 1612836 1792040 2016045 2044440 2419254 2688060 3225672 3628881 4032090 4838508 5376120 6048135 7257762 8064180 9677016 12096270 14515524 16128360 18144405 24192540 29031048 36288810 48385080 72577620 145155240
- Sum of all divisors σ(n): 495538560
- Sum of proper divisors (its aliquot sum) s(n): 350383320
- 145155240 is an abundant number, because the sum of its proper divisors (350383320) is greater than itself. Its abundance is 205228080
Bases of 145155240
- Binary: 10001010011011100100101010002
- Hexadecimal: 0x8A6E4A8
- Base-36: 2EF6I0
Squares and roots of 145155240
- 145155240 squared (1451552402) is 21070043699457600
- 145155240 cubed (1451552403) is 3058427250005255797824000
-
The
square root of 145155240 is 12048.0388445589 -
The
cube root of 145155240 is 525.5462070423
Scales and comparisons
How big is 145155240?- 145,155,240 seconds is equal to 4 years, 32 weeks, 54 minutes.
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To count from 1 to 145,155,240 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 145155240 cubic inches would be around 43.8 feet tall.
Recreational maths with 145155240
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