145982720
145,982,720 is an even composite number composed of five prime numbers multiplied together.
145982720 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 145982720:
28 × 5 × 13 × 31 × 283
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 31 × 283)See below for interesting mathematical facts about the number 145982720 from the Numbermatics database.
Names of 145982720
- Cardinal: 145982720 can be written as One hundred forty-five million, nine hundred eighty-two thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.4598272 × 108
Factors of 145982720
Divisors of 145982720
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 31 32 40 52 62 64 65 80 104 124 128 130 155 160 208 248 256 260 283 310 320 403 416 496 520 566 620 640 806 832 992 1040 1132 1240 1280 1415 1612 1664 1984 2015 2080 2264 2480 2830 3224 3328 3679 3968 4030 4160 4528 4960 5660 6448 7358 7936 8060 8320 8773 9056 9920 11320 12896 14716 16120 16640 17546 18112 18395 19840 22640 25792 29432 32240 35092 36224 36790 39680 43865 45280 51584 58864 64480 70184 72448 73580 87730 90560 103168 114049 117728 128960 140368 147160 175460 181120 228098 235456 257920 280736 294320 350920 362240 456196 470912 515840 561472 570245 588640 701840 912392 941824 1122944 1140490 1177280 1403680 1824784 2245888 2280980 2354560 2807360 3649568 4561960 4709120 5614720 7299136 9123920 11229440 14598272 18247840 29196544 36495680 72991360 145982720
- Sum of all divisors σ(n): 390093312
- Sum of proper divisors (its aliquot sum) s(n): 244110592
- 145982720 is an abundant number, because the sum of its proper divisors (244110592) is greater than itself. Its abundance is 98127872
Bases of 145982720
- Binary: 10001011001110000101000000002
- Hexadecimal: 0x8B38500
- Base-36: 2EWWZK
Squares and roots of 145982720
- 145982720 squared (1459827202) is 21310954538598400
- 145982720 cubed (1459827203) is 3111031109340939419648000
-
The
square root of 145982720 is 12082.3309009479 -
The
cube root of 145982720 is 526.5429679759
Scales and comparisons
How big is 145982720?- 145,982,720 seconds is equal to 4 years, 33 weeks, 2 days, 14 hours, 45 minutes, 20 seconds.
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To count from 1 to 145,982,720 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 145982720 cubic inches would be around 43.9 feet tall.
Recreational maths with 145982720
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