81513105000
81,513,105,000 is an even composite number composed of six prime numbers multiplied together.
81513105000 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 81513105000:
23 × 3 × 54 × 31 × 307 × 571
(2 × 2 × 2 × 3 × 5 × 5 × 5 × 5 × 31 × 307 × 571)See below for interesting mathematical facts about the number 81513105000 from the Numbermatics database.
Names of 81513105000
- Cardinal: 81513105000 can be written as Eighty-one billion, five hundred thirteen million, one hundred five thousand.
Scientific notation
- Scientific notation: 8.1513105 × 1010
Factors of 81513105000
Divisors of 81513105000
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 20 24 25 30 31 40 50 60 62 75 93 100 120 124 125 150 155 186 200 248 250 300 307 310 372 375 465 500 571 600 614 620 625 744 750 775 921 930 1000 1142 1228 1240 1250 1500 1535 1550 1713 1842 1860 1875 2284 2325 2456 2500 2855 3000 3070 3100 3426 3684 3720 3750 3875 4568 4605 4650 5000 5710 6140 6200 6852 7368 7500 7675 7750 8565 9210 9300 9517 11420 11625 12280 13704 14275 15000 15350 15500 17130 17701 18420 18600 19034 19375 22840 23025 23250 28550 28551 30700 31000 34260 35402 36840 38068 38375 38750 42825 46050 46500 47585 53103 57100 57102 58125 61400 68520 70804 71375 76136 76750 77500 85650 88505 92100 93000 95170 106206 114200 114204 115125 116250 141608 142750 142755 153500 155000 171300 175297 177010 184200 190340 191875 212412 214125 228408 230250 232500 237925 265515 285500 285510 307000 342600 350594 354020 356875 380680 383750 424824 428250 442525 460500 465000 475850 525891 531030 571000 571020 575625 701188 708040 713750 713775 767500 856500 876485 885050 921000 951700 1051782 1062060 1070625 1142040 1151250 1189625 1327575 1402376 1427500 1427550 1535000 1713000 1752970 1770100 1903400 2103564 2124120 2141250 2212625 2302500 2379250 2629455 2655150 2855000 2855100 3505940 3540200 3568875 4207128 4282500 4382425 4425250 4605000 4758500 5258910 5310300 5434207 5710200 5948125 6637875 7011880 7137750 8565000 8764850 8850500 9517000 10517820 10620600 10868414 11063125 11896250 13147275 13275750 14275500 16302621 17529700 17701000 17844375 21035640 21736828 21912125 22126250 23792500 26294550 26551500 27171035 28551000 32605242 33189375 35059400 35688750 43473656 43824250 44252500 47585000 52589100 53103000 54342070 65210484 65736375 66378750 71377500 81513105 87648500 88505000 105178200 108684140 109560625 130420968 131472750 132757500 135855175 142755000 163026210 175297000 217368280 219121250 262945500 265515000 271710350 326052420 328681875 407565525 438242500 525891000 543420700 652104840 657363750 679275875 815131050 876485000 1086841400 1314727500 1358551750 1630262100 2037827625 2629455000 2717103500 3260524200 3396379375 4075655250 5434207000 6792758750 8151310500 10189138125 13585517500 16302621000 20378276250 27171035000 40756552500 81513105000
- Sum of all divisors σ(n): 264179435520
- Sum of proper divisors (its aliquot sum) s(n): 182666330520
- 81513105000 is an abundant number, because the sum of its proper divisors (182666330520) is greater than itself. Its abundance is 101153225520
Bases of 81513105000
- Binary: 10010111110101000111101000110011010002
- Hexadecimal: 0x12FA8F4668
- Base-36: 11G2SQCO
Squares and roots of 81513105000
- 81513105000 squared (815131050002) is 6644386286741025000000
- 81513105000 cubed (815131050003) is 541604557051681278632625000000000
-
The
square root of 81513105000 is 285504.9999562179 -
The
cube root of 81513105000 is 4335.8656040835
Scales and comparisons
How big is 81513105000?- 81,513,105,000 seconds is equal to 2,591 years, 44 weeks, 6 days, 17 hours, 10 minutes.
-
To count from 1 to 81,513,105,000 would take you about five thousand, one hundred eighty-three 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 81513105000 cubic inches would be around 361.3 feet tall.
Recreational maths with 81513105000
- 81513105000 backwards is 00050131518
- 81513105000 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81513105000's digits is 24
- More coming soon!
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