28427840
28,427,840 is an even composite number composed of four prime numbers multiplied together.
28427840 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty divisors.
Prime factorization of 28427840:
26 × 5 × 74 × 37
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 7 × 7 × 37)See below for interesting mathematical facts about the number 28427840 from the Numbermatics database.
Names of 28427840
- Cardinal: 28427840 can be written as Twenty-eight million, four hundred twenty-seven thousand, eight hundred forty.
Scientific notation
- Scientific notation: 2.842784 × 107
Factors of 28427840
Divisors of 28427840
- Number of divisors d(n): 140
-
Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 37 40 49 56 64 70 74 80 98 112 140 148 160 185 196 224 245 259 280 296 320 343 370 392 448 490 518 560 592 686 740 784 980 1036 1120 1184 1295 1372 1480 1568 1715 1813 1960 2072 2240 2368 2401 2590 2744 2960 3136 3430 3626 3920 4144 4802 5180 5488 5920 6860 7252 7840 8288 9065 9604 10360 10976 11840 12005 12691 13720 14504 15680 16576 18130 19208 20720 21952 24010 25382 27440 29008 36260 38416 41440 48020 50764 54880 58016 63455 72520 76832 82880 88837 96040 101528 109760 116032 126910 145040 153664 177674 192080 203056 253820 290080 355348 384160 406112 444185 507640 580160 710696 768320 812224 888370 1015280 1421392 1776740 2030560 2842784 3553480 4061120 5685568 7106960 14213920 28427840
- Sum of all divisors σ(n): 81105756
- Sum of proper divisors (its aliquot sum) s(n): 52677916
- 28427840 is an abundant number, because the sum of its proper divisors (52677916) is greater than itself. Its abundance is 24250076
Bases of 28427840
- Binary: 11011000111000110010000002
- Hexadecimal: 0x1B1C640
- Base-36: GXB28
Squares and roots of 28427840
- 28427840 squared (284278402) is 808142087065600
- 28427840 cubed (284278403) is 22973733948366946304000
-
The
square root of 28427840 is 5331.7764394243 -
The
cube root of 28427840 is 305.1977218359
Scales and comparisons
How big is 28427840?- 28,427,840 seconds is equal to 47 weeks, 37 minutes, 20 seconds.
-
To count from 1 to 28,427,840 would take you about eighteen weeks!
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 28427840 cubic inches would be around 25.4 feet tall.
Recreational maths with 28427840
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The information we have on file for 28427840 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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