21125972736
21,125,972,736 is an even composite number composed of four prime numbers multiplied together.
21125972736 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 21125972736:
28 × 32 × 113 × 832
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 11 × 11 × 11 × 83 × 83)See below for interesting mathematical facts about the number 21125972736 from the Numbermatics database.
Names of 21125972736
- Cardinal: 21125972736 can be written as Twenty-one billion, one hundred twenty-five million, nine hundred seventy-two thousand, seven hundred thirty-six.
Scientific notation
- Scientific notation: 2.1125972736 × 1010
Factors of 21125972736
Divisors of 21125972736
- Number of divisors d(n): 324
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 83 88 96 99 121 128 132 144 166 176 192 198 242 249 256 264 288 332 352 363 384 396 484 498 528 576 664 704 726 747 768 792 913 968 996 1056 1089 1152 1328 1331 1408 1452 1494 1584 1826 1936 1992 2112 2178 2304 2656 2662 2739 2816 2904 2988 3168 3652 3872 3984 3993 4224 4356 5312 5324 5478 5808 5976 6336 6889 7304 7744 7968 7986 8217 8448 8712 10043 10624 10648 10956 11616 11952 11979 12672 13778 14608 15488 15936 15972 16434 17424 20086 20667 21248 21296 21912 23232 23904 23958 25344 27556 29216 30129 30976 31872 31944 32868 34848 40172 41334 42592 43824 46464 47808 47916 55112 58432 60258 62001 63744 63888 65736 69696 75779 80344 82668 85184 87648 90387 92928 95616 95832 110224 110473 116864 120516 124002 127776 131472 139392 151558 160688 165336 170368 175296 180774 191232 191664 220448 220946 227337 233728 241032 248004 255552 262944 278784 303116 321376 330672 331419 340736 350592 361548 383328 440896 441892 454674 482064 496008 511104 525888 606232 642752 661344 662838 682011 701184 723096 766656 833569 881792 883784 909348 964128 992016 994257 1022208 1051776 1212464 1285504 1322688 1325676 1364022 1446192 1533312 1667138 1763584 1767568 1818696 1928256 1984032 1988514 2103552 2424928 2500707 2571008 2645376 2651352 2728044 2892384 3066624 3334276 3535136 3637392 3856512 3968064 3977028 4849856 5001414 5290752 5302704 5456088 5784768 6668552 7070272 7274784 7502121 7713024 7936128 7954056 9169259 9699712 10002828 10605408 10912176 11569536 13337104 14140544 14549568 15004242 15872256 15908112 18338518 19399424 20005656 21210816 21824352 23139072 26674208 27507777 28281088 29099136 30008484 31816224 36677036 40011312 42421632 43648704 53348416 55015554 58198272 60016968 63632448 73354072 80022624 82523331 84843264 87297408 106696832 110031108 120033936 127264896 146708144 160045248 165046662 174594816 213393664 220062216 240067872 254529792 293416288 320090496 330093324 440124432 480135744 586832576 640180992 660186648 880248864 960271488 1173665152 1320373296 1760497728 1920542976 2347330304 2640746592 3520995456 5281493184 7041990912 10562986368 21125972736
- Sum of all divisors σ(n): 67814879496
- Sum of proper divisors (its aliquot sum) s(n): 46688906760
- 21125972736 is an abundant number, because the sum of its proper divisors (46688906760) is greater than itself. Its abundance is 25562934024
Bases of 21125972736
- Binary: 100111010110011010011000011000000002
- Hexadecimal: 0x4EB34C300
- Base-36: 9PDUWW0
Squares and roots of 21125972736
- 21125972736 squared (211259727362) is 446306724042215325696
- 21125972736 cubed (211259727363) is 9428663684009316683695056224256
-
The
square root of 21125972736 is 145347.7648125351 -
The
cube root of 21125972736 is 2764.4298364705
Scales and comparisons
How big is 21125972736?- 21,125,972,736 seconds is equal to 671 years, 38 weeks, 3 days, 13 hours, 45 minutes, 36 seconds.
-
To count from 1 to 21,125,972,736 would take you about one thousand, three hundred forty-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 21125972736 cubic inches would be around 230.4 feet tall.
Recreational maths with 21125972736
- 21125972736 backwards is 63727952112
- The number of decimal digits it has is: 11
- The sum of 21125972736's digits is 45
- More coming soon!
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