21088990720
21,088,990,720 is an even composite number composed of six prime numbers multiplied together.
21088990720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21088990720:
29 × 5 × 7 × 19 × 23 × 2693
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 19 × 23 × 2693)See below for interesting mathematical facts about the number 21088990720 from the Numbermatics database.
Names of 21088990720
- Cardinal: 21088990720 can be written as Twenty-one billion, eighty-eight million, nine hundred ninety thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.108899072 × 1010
Factors of 21088990720
Divisors of 21088990720
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 4 5 7 8 10 14 16 19 20 23 28 32 35 38 40 46 56 64 70 76 80 92 95 112 115 128 133 140 152 160 161 184 190 224 230 256 266 280 304 320 322 368 380 437 448 460 512 532 560 608 640 644 665 736 760 805 874 896 920 1064 1120 1216 1280 1288 1330 1472 1520 1610 1748 1792 1840 2128 2185 2240 2432 2560 2576 2660 2693 2944 3040 3059 3220 3496 3584 3680 4256 4370 4480 4864 5152 5320 5386 5888 6080 6118 6440 6992 7360 8512 8740 8960 9728 10304 10640 10772 11776 12160 12236 12880 13465 13984 14720 15295 17024 17480 17920 18851 20608 21280 21544 24320 24472 25760 26930 27968 29440 30590 34048 34960 37702 41216 42560 43088 48640 48944 51167 51520 53860 55936 58880 61180 61939 68096 69920 75404 82432 85120 86176 94255 97888 102334 103040 107720 111872 122360 123878 139840 150808 170240 172352 188510 195776 204668 206080 215440 223744 244720 247756 255835 279680 301616 309695 340480 344704 358169 377020 391552 409336 412160 430880 433573 489440 495512 511670 559360 603232 619390 689408 716338 754040 783104 818672 861760 867146 978880 991024 1023340 1118720 1176841 1206464 1238780 1378816 1432676 1508080 1566208 1637344 1723520 1734292 1790845 1957760 1982048 2046680 2167865 2353682 2412928 2477560 2865352 3016160 3274688 3447040 3468584 3581690 3915520 3964096 4093360 4335730 4707364 4825856 4955120 5730704 5884205 6032320 6549376 6894080 6937168 7163380 7831040 7928192 8186720 8237887 8671460 9414728 9651712 9910240 11461408 11768410 12064640 13098752 13874336 14326760 15856384 16373440 16475774 17342920 18829456 19820480 22922816 23536820 24129280 26197504 27748672 28653520 31712768 32746880 32951548 34685840 37658912 39640960 41189435 45845632 47073640 48258560 55497344 57307040 65493760 65903096 69371680 75317824 79281920 82378870 91691264 94147280 110994688 114614080 130987520 131806192 138743360 150635648 158563840 164757740 183382528 188294560 221989376 229228160 263612384 277486720 301271296 329515480 376589120 458456320 527224768 554973440 602542592 659030960 753178240 916912640 1054449536 1109946880 1318061920 1506356480 2108899072 2636123840 3012712960 4217798144 5272247680 10544495360 21088990720
- Sum of all divisors σ(n): 63497364480
- Sum of proper divisors (its aliquot sum) s(n): 42408373760
- 21088990720 is an abundant number, because the sum of its proper divisors (42408373760) is greater than itself. Its abundance is 21319383040
Bases of 21088990720
- Binary: 100111010010000000001110110000000002
- Hexadecimal: 0x4E9007600
- Base-36: 9ORU9DS
Squares and roots of 21088990720
- 21088990720 squared (210889907202) is 444745529588246118400
- 21088990720 cubed (210889907203) is 9379234346248007812013621248000
-
The
square root of 21088990720 is 145220.4900143227 -
The
cube root of 21088990720 is 2762.8158058323
Scales and comparisons
How big is 21088990720?- 21,088,990,720 seconds is equal to 670 years, 29 weeks, 2 days, 12 hours, 58 minutes, 40 seconds.
-
To count from 1 to 21,088,990,720 would take you about one thousand, three hundred forty-one 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 21088990720 cubic inches would be around 230.2 feet tall.
Recreational maths with 21088990720
- 21088990720 backwards is 02709988012
- 21088990720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21088990720's digits is 46
- More coming soon!
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