81428986080
81,428,986,080 is an even composite number composed of five prime numbers multiplied together.
81428986080 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 81428986080:
25 × 32 × 5 × 132 × 334603
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 13 × 334603)See below for interesting mathematical facts about the number 81428986080 from the Numbermatics database.
Names of 81428986080
- Cardinal: 81428986080 can be written as Eighty-one billion, four hundred twenty-eight million, nine hundred eighty-six thousand and eighty.
Scientific notation
- Scientific notation: 8.142898608 × 1010
Factors of 81428986080
Divisors of 81428986080
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 65 72 78 80 90 96 104 117 120 130 144 156 160 169 180 195 208 234 240 260 288 312 338 360 390 416 468 480 507 520 585 624 676 720 780 845 936 1014 1040 1170 1248 1352 1440 1521 1560 1690 1872 2028 2080 2340 2535 2704 3042 3120 3380 3744 4056 4680 5070 5408 6084 6240 6760 7605 8112 9360 10140 12168 13520 15210 16224 18720 20280 24336 27040 30420 40560 48672 60840 81120 121680 243360 334603 669206 1003809 1338412 1673015 2007618 2676824 3011427 3346030 4015236 4349839 5019045 5353648 6022854 6692060 8030472 8699678 10038090 10707296 12045708 13049517 13384120 15057135 16060944 17399356 20076180 21749195 24091416 26099034 26768240 30114270 32121888 34798712 39148551 40152360 43498390 48182832 52198068 53536480 56547907 60228540 65247585 69597424 78297102 80304720 86996780 96365664 104396136 113095814 120457080 130495170 139194848 156594204 160609440 169643721 173993560 195742755 208792272 226191628 240914160 260990340 282739535 313188408 339287442 347987120 391485510 417584544 452383256 481828320 508931163 521980680 565479070 626376816 678574884 695974240 782971020 848218605 904766512 1017862326 1043961360 1130958140 1252753632 1357149768 1565942040 1696437210 1809533024 2035724652 2087922720 2261916280 2544655815 2714299536 3131884080 3392874420 4071449304 4523832560 5089311630 5428599072 6263768160 6785748840 8142898608 9047665120 10178623260 13571497680 16285797216 20357246520 27142995360 40714493040 81428986080
- Sum of all divisors σ(n): 300896662248
- Sum of proper divisors (its aliquot sum) s(n): 219467676168
- 81428986080 is an abundant number, because the sum of its proper divisors (219467676168) is greater than itself. Its abundance is 138038690088
Bases of 81428986080
- Binary: 10010111101011000101110111000111000002
- Hexadecimal: 0x12F58BB8E0
- Base-36: 11EOPRS0
Squares and roots of 81428986080
- 81428986080 squared (814289860802) is 6630679774016833766400
- 81428986080 cubed (814289860803) is 539929531019354302449859571712000
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The
square root of 81428986080 is 285357.6459112319 -
The
cube root of 81428986080 is 4334.3735991413
Scales and comparisons
How big is 81428986080?- 81,428,986,080 seconds is equal to 2,589 years, 9 weeks, 6 days, 2 hours, 48 minutes.
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To count from 1 to 81,428,986,080 would take you about five thousand, one hundred seventy-eight 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 81428986080 cubic inches would be around 361.2 feet tall.
Recreational maths with 81428986080
- 81428986080 backwards is 08068982418
- The number of decimal digits it has is: 11
- The sum of 81428986080's digits is 54
- More coming soon!
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