12721391172
12,721,391,172 is an even composite number composed of five prime numbers multiplied together.
12721391172 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred twenty divisors.
Prime factorization of 12721391172:
22 × 36 × 74 × 23 × 79
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 7 × 7 × 7 × 7 × 23 × 79)See below for interesting mathematical facts about the number 12721391172 from the Numbermatics database.
Names of 12721391172
- Cardinal: 12721391172 can be written as Twelve billion, seven hundred twenty-one million, three hundred ninety-one thousand, one hundred seventy-two.
Scientific notation
- Scientific notation: 1.2721391172 × 1010
Factors of 12721391172
Divisors of 12721391172
- Number of divisors d(n): 420
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Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 21 23 27 28 36 42 46 49 54 63 69 79 81 84 92 98 108 126 138 147 158 161 162 189 196 207 237 243 252 276 294 316 322 324 343 378 414 441 474 483 486 553 567 588 621 644 686 711 729 756 828 882 948 966 972 1029 1106 1127 1134 1242 1323 1372 1422 1449 1458 1659 1701 1764 1817 1863 1932 2058 2133 2212 2254 2268 2401 2484 2646 2844 2898 2916 3087 3318 3381 3402 3634 3726 3871 3969 4116 4266 4347 4508 4802 4977 5103 5292 5451 5589 5796 6174 6399 6636 6762 6804 7203 7268 7452 7742 7889 7938 8532 8694 9261 9604 9954 10143 10206 10902 11178 11613 11907 12348 12719 12798 13041 13524 14406 14931 15484 15778 15876 16353 16767 17388 18522 19197 19908 20286 20412 21609 21804 22356 23226 23667 23814 25438 25596 26082 27097 27783 28812 29862 30429 31556 32706 33534 34839 35721 37044 38157 38394 39123 40572 43218 44793 46452 47334 47628 49059 50876 52164 54194 55223 55566 57591 59724 60858 64827 65412 67068 69678 71001 71442 76314 76788 78246 81291 83349 86436 89033 89586 91287 94668 98118 104517 108388 110446 111132 114471 115182 117369 121716 129654 134379 139356 142002 142884 147177 152628 156492 162582 165669 166698 178066 179172 182574 189679 194481 196236 209034 213003 220892 228942 230364 234738 243873 250047 259308 267099 268758 273861 284004 294354 313551 325164 331338 333396 343413 356132 365148 379358 388962 403137 418068 426006 441531 457884 469476 487746 497007 500094 534198 537516 547722 569037 583443 588708 623231 627102 639009 662676 686826 731619 758716 777924 801297 806274 821583 852012 883062 940653 975492 994014 1000188 1030239 1068396 1095444 1138074 1166886 1246462 1254204 1278018 1324593 1373652 1463238 1491021 1602594 1612548 1643166 1707111 1750329 1766124 1869693 1881306 1917027 1988028 2060478 2194857 2276148 2333772 2403891 2492924 2556036 2649186 2821959 2926476 2982042 3090717 3205188 3286332 3414222 3500658 3739386 3762612 3834054 4120956 4362617 4389714 4473063 4807782 5121333 5298372 5609079 5643918 5751081 5964084 6181434 6584571 6828444 7001316 7211673 7478772 7668108 8725234 8779428 8946126 9272151 9615564 10242666 11218158 11287836 11502162 12362868 13087851 13169142 13419189 14423346 15363999 16827237 17450468 17892252 18544302 19753713 20485332 21635019 22436316 23004324 26175702 26338284 26838378 28846692 30727998 33654474 37088604 39263553 39507426 40257567 43270038 46091997 50481711 52351404 53676756 61455996 64905057 67308948 78527106 79014852 80515134 86540076 92183994 100963422 117790659 129810114 138275991 151445133 157054212 161030268 184367988 201926844 235581318 259620228 276551982 302890266 353371977 454335399 471162636 553103964 605780532 706743954 908670798 1060115931 1413487908 1817341596 2120231862 3180347793 4240463724 6360695586 12721391172
- Sum of all divisors σ(n): 41146465920
- Sum of proper divisors (its aliquot sum) s(n): 28425074748
- 12721391172 is an abundant number, because the sum of its proper divisors (28425074748) is greater than itself. Its abundance is 15703683576
Bases of 12721391172
- Binary: 10111101100100000100000110010001002
- Hexadecimal: 0x2F6410644
- Base-36: 5UDZK90
Squares and roots of 12721391172
- 12721391172 squared (127213911722) is 161833793351039533584
- 12721391172 cubed (127213911723) is 2058750990067186619558495120448
-
The
square root of 12721391172 is 112789.1447436321 -
The
cube root of 12721391172 is 2334.4157373641
Scales and comparisons
How big is 12721391172?- 12,721,391,172 seconds is equal to 404 years, 26 weeks, 7 hours, 46 minutes, 12 seconds.
-
To count from 1 to 12,721,391,172 would take you about eight hundred nine 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 12721391172 cubic inches would be around 194.5 feet tall.
Recreational maths with 12721391172
- 12721391172 backwards is 27119312721
- 12721391172 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 12721391172's digits is 36
- More coming soon!
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The information we have on file for 12721391172 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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