21291042080
21,291,042,080 is an even composite number composed of seven prime numbers multiplied together.
21291042080 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21291042080:
25 × 5 × 7 × 11 × 17 × 59 × 1723
(2 × 2 × 2 × 2 × 2 × 5 × 7 × 11 × 17 × 59 × 1723)See below for interesting mathematical facts about the number 21291042080 from the Numbermatics database.
Names of 21291042080
- Cardinal: 21291042080 can be written as Twenty-one billion, two hundred ninety-one million, forty-two thousand and eighty.
Scientific notation
- Scientific notation: 2.129104208 × 1010
Factors of 21291042080
Divisors of 21291042080
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 17 20 22 28 32 34 35 40 44 55 56 59 68 70 77 80 85 88 110 112 118 119 136 140 154 160 170 176 187 220 224 236 238 272 280 295 308 340 352 374 385 413 440 472 476 544 560 590 595 616 649 680 748 770 826 880 935 944 952 1003 1120 1180 1190 1232 1298 1309 1360 1496 1540 1652 1723 1760 1870 1888 1904 2006 2065 2360 2380 2464 2596 2618 2720 2992 3080 3245 3304 3446 3740 3808 4012 4130 4543 4720 4760 5015 5192 5236 5984 6160 6490 6545 6608 6892 7021 7480 8024 8260 8615 9086 9440 9520 10030 10384 10472 11033 12061 12320 12980 13090 13216 13784 14042 14960 16048 16520 17230 18172 18953 19040 20060 20768 20944 22066 22715 24122 25960 26180 27568 28084 29291 29920 32096 33040 34460 35105 36344 37906 40120 41888 44132 45430 48244 51920 52360 55136 55165 56168 58582 60305 66080 68920 70210 72688 75812 77231 80240 88264 90860 94765 96488 101657 103840 104720 110330 112336 117164 120610 132671 137840 140420 145376 146455 151624 154462 160480 176528 181720 189530 192976 203314 205037 209440 220660 224672 234328 241220 265342 275680 280840 292910 303248 308924 322201 353056 363440 379060 385952 386155 406628 410074 441320 468656 482440 508285 530684 561680 585820 606496 617848 644402 663355 711599 726880 758120 772310 813256 820148 882640 937312 964880 1016570 1025185 1061368 1118227 1123360 1171640 1235696 1288804 1326710 1423198 1516240 1544620 1611005 1626512 1640296 1728169 1765280 1929760 2033140 2050370 2122736 2236454 2255407 2343280 2471392 2577608 2653420 2846396 3032480 3089240 3222010 3253024 3280592 3456338 3557995 4066280 4100740 4245472 4472908 4510814 4686560 5155216 5306840 5591135 5692792 6178480 6444020 6561184 6912676 7115990 7827589 8132560 8201480 8640845 8945816 9021628 10310432 10613680 11182270 11277035 11385584 12097183 12356960 12888040 13825352 14231980 15655178 16265120 16402960 17281690 17891632 18043256 19009859 21227360 22364540 22554070 22771168 24194366 25776080 27650704 28463960 31310356 32805920 34563380 35783264 36086512 38019718 39137945 44729080 45108140 48388732 51552160 55301408 56927920 60485915 62620712 69126760 72173024 76039436 78275890 89458160 90216280 95049295 96777464 113855840 120971830 125241424 133069013 138253520 152078872 156551780 178916320 180432560 190098590 193554928 241943660 250482848 266138026 276507040 304157744 313103560 360865120 380197180 387109856 483887320 532276052 608315488 626207120 665345065 760394360 967774640 1064552104 1252414240 1330690130 1520788720 1935549280 2129104208 2661380260 3041577440 4258208416 5322760520 10645521040 21291042080
- Sum of all divisors σ(n): 67565352960
- Sum of proper divisors (its aliquot sum) s(n): 46274310880
- 21291042080 is an abundant number, because the sum of its proper divisors (46274310880) is greater than itself. Its abundance is 24983268800
Bases of 21291042080
- Binary: 100111101010000101110000101001000002
- Hexadecimal: 0x4F50B8520
- Base-36: 9S44X7K
Squares and roots of 21291042080
- 21291042080 squared (212910420802) is 453308472852330726400
- 21291042080 cubed (212910420803) is 9651409770719511121859366912000
-
The
square root of 21291042080 is 145914.5026376747 -
The
cube root of 21291042080 is 2771.6111901891
Scales and comparisons
How big is 21291042080?- 21,291,042,080 seconds is equal to 676 years, 51 weeks, 3 days, 2 hours, 21 minutes, 20 seconds.
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To count from 1 to 21,291,042,080 would take you about one thousand, three hundred fifty-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 21291042080 cubic inches would be around 231 feet tall.
Recreational maths with 21291042080
- 21291042080 backwards is 08024019212
- The number of decimal digits it has is: 11
- The sum of 21291042080's digits is 29
- More coming soon!
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