81527998149
81,527,998,149 is an odd composite number composed of seven prime numbers multiplied together.
81527998149 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 81527998149:
33 × 13 × 17 × 19 × 29 × 137 × 181
(3 × 3 × 3 × 13 × 17 × 19 × 29 × 137 × 181)See below for interesting mathematical facts about the number 81527998149 from the Numbermatics database.
Names of 81527998149
- Cardinal: 81527998149 can be written as Eighty-one billion, five hundred twenty-seven million, nine hundred ninety-eight thousand, one hundred forty-nine.
Scientific notation
- Scientific notation: 8.1527998149 × 1010
Factors of 81527998149
Divisors of 81527998149
- Number of divisors d(n): 256
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Complete list of divisors:
1 3 9 13 17 19 27 29 39 51 57 87 117 137 153 171 181 221 247 261 323 351 377 411 459 493 513 543 551 663 741 783 969 1131 1233 1479 1629 1653 1781 1989 2223 2329 2353 2603 2907 3077 3393 3439 3699 3973 4199 4437 4887 4959 5249 5343 5967 6409 6669 6987 7059 7163 7809 8721 9231 9367 10179 10317 11919 12597 13311 14877 15747 16029 19227 20961 21177 21489 23427 24797 27693 28101 30277 30951 33839 35757 37791 40001 44251 44707 47241 48087 51649 57681 58463 62883 63531 64467 67541 68237 70281 74391 75487 83079 84303 89233 90831 92853 99731 101517 107271 113373 120003 121771 132753 134121 141723 154947 173043 175389 193401 202623 204711 223173 226461 252909 267699 272493 299193 304551 322361 360009 365313 398259 402363 421549 464841 471143 526167 575263 607869 614133 669519 679383 719113 760019 803097 817479 878033 897579 913653 967083 981331 1080027 1095939 1160029 1194777 1207089 1264647 1283279 1296503 1394523 1413429 1578501 1695427 1725789 1823607 1842399 2038149 2157339 2280057 2409291 2634099 2692737 2901249 2943993 3287817 3480087 3793941 3849837 3889509 4240287 5086281 5177367 5480137 6124859 6472017 6840171 7902297 8009431 8703747 8831979 9348469 10440261 11381823 11549511 11668527 12224921 12720861 13663147 15258843 15532101 16440411 16682627 18374577 19416051 20520513 22040551 23706891 24028293 26495937 28045407 31320783 34648533 35005581 36674763 40989441 45776529 49321233 50047881 55123731 66121653 72084879 84136221 104122603 110024289 122968323 147963699 150143643 158923973 165371193 177620911 198364959 216254637 232273499 252408663 312367809 330072867 368904969 450430929 476771919 532862733 595094877 696820497 937103427 1430315757 1598588199 2090461491 2811310281 3019555487 4290947271 4795764597 6271384473 9058666461 27175999383 81527998149
- Sum of all divisors σ(n): 151901568000
- Sum of proper divisors (its aliquot sum) s(n): 70373569851
- 81527998149 is a deficient number, because the sum of its proper divisors (70373569851) is less than itself. Its deficiency is 11154428298
Bases of 81527998149
- Binary: 10010111110110111001010000110110001012
- Hexadecimal: 0x12FB7286C5
- Base-36: 11GBNXZ9
Squares and roots of 81527998149
- 81527998149 squared (815279981492) is 6646814482183347426201
- 81527998149 cubed (815279981493) is 541901478800190342441939042101949
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The
square root of 81527998149 is 285531.0808808737 -
The
cube root of 81527998149 is 4336.1296547131
Scales and comparisons
How big is 81527998149?- 81,527,998,149 seconds is equal to 2,592 years, 17 weeks, 4 days, 2 hours, 9 minutes, 9 seconds.
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To count from 1 to 81,527,998,149 would take you about five thousand, one hundred eighty-four 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 81527998149 cubic inches would be around 361.3 feet tall.
Recreational maths with 81527998149
- 81527998149 backwards is 94189972518
- The number of decimal digits it has is: 11
- The sum of 81527998149's digits is 63
- More coming soon!
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