81379382400
81,379,382,400 is an even composite number composed of five prime numbers multiplied together.
81379382400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 81379382400:
27 × 33 × 52 × 29 × 32479
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 5 × 29 × 32479)See below for interesting mathematical facts about the number 81379382400 from the Numbermatics database.
Names of 81379382400
- Cardinal: 81379382400 can be written as Eighty-one billion, three hundred seventy-nine million, three hundred eighty-two thousand, four hundred.
Scientific notation
- Scientific notation: 8.13793824 × 1010
Factors of 81379382400
Divisors of 81379382400
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 29 30 32 36 40 45 48 50 54 58 60 64 72 75 80 87 90 96 100 108 116 120 128 135 144 145 150 160 174 180 192 200 216 225 232 240 261 270 288 290 300 320 348 360 384 400 432 435 450 464 480 522 540 576 580 600 640 675 696 720 725 783 800 864 870 900 928 960 1044 1080 1152 1160 1200 1305 1350 1392 1440 1450 1566 1600 1728 1740 1800 1856 1920 2088 2160 2175 2320 2400 2610 2700 2784 2880 2900 3132 3200 3456 3480 3600 3712 3915 4176 4320 4350 4640 4800 5220 5400 5568 5760 5800 6264 6525 6960 7200 7830 8352 8640 8700 9280 9600 10440 10800 11136 11600 12528 13050 13920 14400 15660 16704 17280 17400 18560 19575 20880 21600 23200 25056 26100 27840 28800 31320 32479 33408 34800 39150 41760 43200 46400 50112 52200 55680 62640 64958 69600 78300 83520 86400 92800 97437 100224 104400 125280 129916 139200 156600 162395 167040 194874 208800 250560 259832 278400 292311 313200 324790 389748 417600 487185 501120 519664 584622 626400 649580 779496 811975 835200 876933 941891 974370 1039328 1169244 1252800 1299160 1461555 1558992 1623950 1753866 1883782 1948740 2078656 2338488 2435925 2505600 2598320 2825673 2923110 3117984 3247900 3507732 3767564 3897480 4157312 4384665 4676976 4709455 4871850 5196640 5651346 5846220 6235968 6495800 7015464 7307775 7535128 7794960 8477019 8769330 9353952 9418910 9743700 10393280 11302692 11692440 12471936 12991600 14030928 14128365 14615550 15070256 15589920 16954038 17538660 18707904 18837820 19487400 20786560 21923325 22605384 23384880 23547275 25431057 25983200 28061856 28256730 29231100 30140512 31179840 33908076 35077320 37415808 37675640 38974800 42385095 43846650 45210768 46769760 47094550 50862114 51966400 56123712 56513460 58462200 60281024 62359680 67816152 70154640 70641825 75351280 77949600 84770190 87693300 90421536 93539520 94189100 101724228 103932800 112247424 113026920 116924400 120562048 127155285 135632304 140309280 141283650 150702560 155899200 169540380 175386600 180843072 187079040 188378200 203448456 211925475 226053840 233848800 254310570 271264608 280618560 282567300 301405120 311798400 339080760 350773200 361686144 376756400 406896912 423850950 452107680 467697600 508621140 542529216 561237120 565134600 602810240 635776425 678161520 701546400 753512800 813793824 847701900 904215360 935395200 1017242280 1085058432 1130269200 1271552850 1356323040 1403092800 1507025600 1627587648 1695403800 1808430720 2034484560 2260538400 2543105700 2712646080 2806185600 3014051200 3255175296 3390807600 4068969120 4521076800 5086211400 5425292160 6781615200 8137938240 9042153600 10172422800 13563230400 16275876480 20344845600 27126460800 40689691200 81379382400
- Sum of all divisors σ(n): 308105280000
- Sum of proper divisors (its aliquot sum) s(n): 226725897600
- 81379382400 is an abundant number, because the sum of its proper divisors (226725897600) is greater than itself. Its abundance is 145346515200
Bases of 81379382400
- Binary: 10010111100101001011011010100100000002
- Hexadecimal: 0x12F296D480
- Base-36: 11DV6LC0
Squares and roots of 81379382400
- 81379382400 squared (813793824002) is 6622603879805429760000
- 81379382400 cubed (813793824003) is 538943413618409706035380224000000
-
The
square root of 81379382400 is 285270.7177401845 -
The
cube root of 81379382400 is 4333.4933042851
Scales and comparisons
How big is 81379382400?- 81,379,382,400 seconds is equal to 2,587 years, 31 weeks, 6 days.
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To count from 1 to 81,379,382,400 would take you about five thousand, one hundred seventy-five 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 81379382400 cubic inches would be around 361.1 feet tall.
Recreational maths with 81379382400
- 81379382400 backwards is 00428397318
- 81379382400 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81379382400's digits is 45
- More coming soon!
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The information we have on file for 81379382400 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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