81438629350
81,438,629,350 is an even composite number composed of seven prime numbers multiplied together.
81438629350 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 81438629350:
2 × 52 × 13 × 19 × 127 × 137 × 379
(2 × 5 × 5 × 13 × 19 × 127 × 137 × 379)See below for interesting mathematical facts about the number 81438629350 from the Numbermatics database.
Names of 81438629350
- Cardinal: 81438629350 can be written as Eighty-one billion, four hundred thirty-eight million, six hundred twenty-nine thousand, three hundred fifty.
Scientific notation
- Scientific notation: 8.143862935 × 1010
Factors of 81438629350
Divisors of 81438629350
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 5 10 13 19 25 26 38 50 65 95 127 130 137 190 247 254 274 325 379 475 494 635 650 685 758 950 1235 1270 1370 1651 1781 1895 2413 2470 2603 3175 3302 3425 3562 3790 4826 4927 5206 6175 6350 6850 7201 8255 8905 9475 9854 12065 12350 13015 14402 16510 17399 17810 18950 24130 24635 26030 31369 33839 34798 36005 41275 44525 48133 49270 51923 60325 62738 65075 67678 72010 82550 86995 89050 93613 96266 103846 120650 123175 130150 156845 169195 173990 180025 187226 226187 240665 246350 259615 313690 330581 338390 360050 434975 452374 468065 481330 519230 625729 661162 674999 784225 845975 869950 914527 936130 986537 1130935 1203325 1251458 1298075 1349998 1568450 1652905 1691950 1829054 1973074 2261870 2340325 2406650 2596150 3128645 3305810 3374995 4297553 4572635 4680650 4932685 5654675 6257290 6594221 6749990 8264525 8595106 9145270 9865370 11309350 11888851 12824981 13188442 15643225 16529050 16874975 21487765 22863175 23777702 24663425 25649962 31286450 32971105 33749950 42975530 45726350 49326850 59444255 64124905 65942210 85724873 107438825 118888510 125290199 128249810 164855525 171449746 214877650 250580398 297221275 320624525 329711050 428624365 594442550 626450995 641249050 857248730 1252901990 1628772587 2143121825 3132254975 3257545174 4286243650 6264509950 8143862935 16287725870 40719314675 81438629350
- Sum of all divisors σ(n): 174788812800
- Sum of proper divisors (its aliquot sum) s(n): 93350183450
- 81438629350 is an abundant number, because the sum of its proper divisors (93350183450) is greater than itself. Its abundance is 11911554100
Bases of 81438629350
- Binary: 10010111101100001111011011101111001102
- Hexadecimal: 0x12F61EDDE6
- Base-36: 11EUGGKM
Squares and roots of 81438629350
- 81438629350 squared (814386293502) is 6632250350406681422500
- 81438629350 cubed (814386293503) is 540121378043177350130508250375000
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The
square root of 81438629350 is 285374.5422247751 -
The
cube root of 81438629350 is 4334.5446925363
Scales and comparisons
How big is 81438629350?- 81,438,629,350 seconds is equal to 2,589 years, 25 weeks, 5 days, 17 hours, 29 minutes, 10 seconds.
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To count from 1 to 81,438,629,350 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 81438629350 cubic inches would be around 361.2 feet tall.
Recreational maths with 81438629350
- 81438629350 backwards is 05392683418
- The number of decimal digits it has is: 11
- The sum of 81438629350's digits is 49
- More coming soon!
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