81326315200
81,326,315,200 is an even composite number composed of four prime numbers multiplied together.
81326315200 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred fifty-two divisors.
Prime factorization of 81326315200:
26 × 52 × 132 × 673
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 13 × 13 × 67 × 67 × 67)See below for interesting mathematical facts about the number 81326315200 from the Numbermatics database.
Names of 81326315200
- Cardinal: 81326315200 can be written as Eighty-one billion, three hundred twenty-six million, three hundred fifteen thousand, two hundred.
Scientific notation
- Scientific notation: 8.13263152 × 1010
Factors of 81326315200
Divisors of 81326315200
- Number of divisors d(n): 252
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Complete list of divisors:
1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 67 80 100 104 130 134 160 169 200 208 260 268 320 325 335 338 400 416 520 536 650 670 676 800 832 845 871 1040 1072 1300 1340 1352 1600 1675 1690 1742 2080 2144 2600 2680 2704 3350 3380 3484 4160 4225 4288 4355 4489 5200 5360 5408 6700 6760 6968 8450 8710 8978 10400 10720 10816 11323 13400 13520 13936 16900 17420 17956 20800 21440 21775 22445 22646 26800 27040 27872 33800 34840 35912 43550 44890 45292 53600 54080 55744 56615 58357 67600 69680 71824 87100 89780 90584 107200 112225 113230 116714 135200 139360 143648 174200 179560 181168 224450 226460 233428 270400 278720 283075 287296 291785 300763 348400 359120 362336 448900 452920 466856 566150 583570 601526 696800 718240 724672 758641 897800 905840 933712 1132300 1167140 1203052 1393600 1436480 1458925 1503815 1517282 1795600 1811680 1867424 2264600 2334280 2406104 2917850 3007630 3034564 3591200 3623360 3734848 3793205 3909919 4529200 4668560 4812208 5835700 6015260 6069128 7182400 7519075 7586410 7819838 9058400 9337120 9624416 11671400 12030520 12138256 15038150 15172820 15639676 18116800 18674240 18966025 19248832 19549595 23342800 24061040 24276512 30076300 30345640 31279352 37932050 39099190 46685600 48122080 48553024 50828947 60152600 60691280 62558704 75864100 78198380 93371200 96244160 97747975 101657894 120305200 121382560 125117408 151728200 156396760 195495950 203315788 240610400 242765120 250234816 254144735 303456400 312793520 390991900 406631576 481220800 508289470 606912800 625587040 781983800 813263152 1016578940 1213825600 1251174080 1270723675 1563967600 1626526304 2033157880 2541447350 3127935200 3253052608 4066315760 5082894700 6255870400 8132631520 10165789400 16265263040 20331578800 40663157600 81326315200
- Sum of all divisors σ(n): 219974205720
- Sum of proper divisors (its aliquot sum) s(n): 138647890520
- 81326315200 is an abundant number, because the sum of its proper divisors (138647890520) is greater than itself. Its abundance is 57321575320
Bases of 81326315200
- Binary: 10010111011110110110100010110110000002
- Hexadecimal: 0x12EF6D16C0
- Base-36: 11CZL6F4
Squares and roots of 81326315200
- 81326315200 squared (813263152002) is 6613969544009751040000
- 81326315200 cubed (813263152003) is 537889771859337284952567808000000
-
The
square root of 81326315200 is 285177.6905720361 -
The
cube root of 81326315200 is 4332.5511477095
Scales and comparisons
How big is 81326315200?- 81,326,315,200 seconds is equal to 2,585 years, 48 weeks, 19 hours, 6 minutes, 40 seconds.
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To count from 1 to 81,326,315,200 would take you about five thousand, one hundred seventy-one 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 81326315200 cubic inches would be around 361 feet tall.
Recreational maths with 81326315200
- 81326315200 backwards is 00251362318
- The number of decimal digits it has is: 11
- The sum of 81326315200's digits is 31
- More coming soon!
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