390142720
390,142,720 is an even composite number composed of four prime numbers multiplied together.
390142720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 390142720:
28 × 5 × 113 × 229
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 11 × 11 × 229)See below for interesting mathematical facts about the number 390142720 from the Numbermatics database.
Names of 390142720
- Cardinal: 390142720 can be written as Three hundred ninety million, one hundred forty-two thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 3.9014272 × 108
Factors of 390142720
Divisors of 390142720
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 121 128 160 176 220 229 242 256 320 352 440 458 484 605 640 704 880 916 968 1145 1210 1280 1331 1408 1760 1832 1936 2290 2420 2519 2662 2816 3520 3664 3872 4580 4840 5038 5324 6655 7040 7328 7744 9160 9680 10076 10648 12595 13310 14080 14656 15488 18320 19360 20152 21296 25190 26620 27709 29312 30976 36640 38720 40304 42592 50380 53240 55418 58624 73280 77440 80608 85184 100760 106480 110836 138545 146560 154880 161216 170368 201520 212960 221672 277090 293120 304799 322432 340736 403040 425920 443344 554180 609598 644864 806080 851840 886688 1108360 1219196 1523995 1612160 1703680 1773376 2216720 2438392 3047990 3224320 3546752 4433440 4876784 6095980 7093504 8866880 9753568 12191960 17733760 19507136 24383920 35467520 39014272 48767840 78028544 97535680 195071360 390142720
- Sum of all divisors σ(n): 1032383520
- Sum of proper divisors (its aliquot sum) s(n): 642240800
- 390142720 is an abundant number, because the sum of its proper divisors (642240800) is greater than itself. Its abundance is 252098080
Bases of 390142720
- Binary: 101110100000100011011000000002
- Hexadecimal: 0x17411B00
- Base-36: 6GA41S
Squares and roots of 390142720
- 390142720 squared (3901427202) is 152211341968998400
- 390142720 cubed (3901427203) is 59384146970635191451648000
-
The
square root of 390142720 is 19752.0307816691 -
The
cube root of 390142720 is 730.7034689995
Scales and comparisons
How big is 390142720?- 390,142,720 seconds is equal to 12 years, 21 weeks, 12 hours, 58 minutes, 40 seconds.
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To count from 1 to 390,142,720 would take you about eighteen 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 390142720 cubic inches would be around 60.9 feet tall.
Recreational maths with 390142720
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