145214720
145,214,720 is an even composite number composed of five prime numbers multiplied together.
145214720 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 145214720:
28 × 5 × 7 × 19 × 853
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 19 × 853)See below for interesting mathematical facts about the number 145214720 from the Numbermatics database.
Names of 145214720
- Cardinal: 145214720 can be written as One hundred forty-five million, two hundred fourteen thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.4521472 × 108
Factors of 145214720
Divisors of 145214720
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 64 70 76 80 95 112 128 133 140 152 160 190 224 256 266 280 304 320 380 448 532 560 608 640 665 760 853 896 1064 1120 1216 1280 1330 1520 1706 1792 2128 2240 2432 2660 3040 3412 4256 4265 4480 4864 5320 5971 6080 6824 8512 8530 8960 10640 11942 12160 13648 16207 17024 17060 21280 23884 24320 27296 29855 32414 34048 34120 42560 47768 54592 59710 64828 68240 81035 85120 95536 109184 113449 119420 129656 136480 162070 170240 191072 218368 226898 238840 259312 272960 324140 382144 453796 477680 518624 545920 567245 648280 764288 907592 955360 1037248 1091840 1134490 1296560 1528576 1815184 1910720 2074496 2268980 2593120 3630368 3821440 4148992 4537960 5186240 7260736 7642880 9075920 10372480 14521472 18151840 20744960 29042944 36303680 72607360 145214720
- Sum of all divisors σ(n): 418938240
- Sum of proper divisors (its aliquot sum) s(n): 273723520
- 145214720 is an abundant number, because the sum of its proper divisors (273723520) is greater than itself. Its abundance is 128508800
Bases of 145214720
- Binary: 10001010011111001101000000002
- Hexadecimal: 0x8A7CD00
- Base-36: 2EGGE8
Squares and roots of 145214720
- 145214720 squared (1452147202) is 21087314904678400
- 145214720 cubed (1452147203) is 3062188529434700546048000
-
The
square root of 145214720 is 12050.5070432743 -
The
cube root of 145214720 is 525.6179812791
Scales and comparisons
How big is 145214720?- 145,214,720 seconds is equal to 4 years, 32 weeks, 17 hours, 25 minutes, 20 seconds.
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To count from 1 to 145,214,720 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 145214720 cubic inches would be around 43.8 feet tall.
Recreational maths with 145214720
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