21321791680
21,321,791,680 is an even composite number composed of six prime numbers multiplied together.
What does the number 21321791680 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 336 divisors.
21321791680 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 21321791680:
26 × 5 × 7 × 17 × 372 × 409
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 17 × 37 × 37 × 409)See below for interesting mathematical facts about the number 21321791680 from the Numbermatics database.
Names of 21321791680
- Cardinal: 21321791680 can be written as Twenty-one billion, three hundred twenty-one million, seven hundred ninety-one thousand, six hundred eighty.
Scientific notation
- Scientific notation: 2.132179168 × 1010
Factors of 21321791680
Divisors of 21321791680
- Number of divisors d(n): 336
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 17 20 28 32 34 35 37 40 56 64 68 70 74 80 85 112 119 136 140 148 160 170 185 224 238 259 272 280 296 320 340 370 409 448 476 518 544 560 592 595 629 680 740 818 952 1036 1088 1120 1184 1190 1258 1295 1360 1369 1480 1636 1904 2045 2072 2240 2368 2380 2516 2590 2720 2738 2863 2960 3145 3272 3808 4090 4144 4403 4760 5032 5180 5440 5476 5726 5920 6290 6544 6845 6953 7616 8180 8288 8806 9520 9583 10064 10360 10952 11452 11840 12580 13088 13690 13906 14315 15133 16360 16576 17612 19040 19166 20128 20720 21904 22015 22904 23273 25160 26176 27380 27812 28630 30266 32720 34765 35224 38080 38332 40256 41440 43808 44030 45808 46546 47915 48671 50320 54760 55624 57260 60532 65440 69530 70448 75665 76664 82880 87616 88060 91616 93092 95830 97342 100640 105931 109520 111248 114520 116365 121064 130880 139060 140896 151330 153328 162911 176120 183232 186184 191660 194684 201280 211862 219040 222496 229040 232730 242128 243355 257261 278120 281792 302660 306656 325822 352240 372368 383320 389368 423724 438080 444992 458080 465460 484256 486710 514522 529655 556240 559921 605320 613312 651644 704480 744736 766640 778736 814555 847448 916160 930920 968512 973420 1029044 1059310 1112480 1119842 1210640 1286305 1303288 1408960 1489472 1533280 1557472 1629110 1694896 1800827 1861840 1946840 2058088 2118620 2224960 2239684 2421280 2572610 2606576 2799605 3066560 3114944 3258220 3389792 3601654 3723680 3893680 3919447 4116176 4237240 4479368 4842560 5145220 5213152 5599210 6516440 6779584 7203308 7447360 7787360 7838894 8232352 8474480 8958736 9004135 9518657 10290440 10426304 11198420 13032880 14406616 15574720 15677788 16464704 16948960 17917472 18008270 19037314 19597235 20580880 22396840 26065760 28813232 31355576 33897920 35834944 36016540 38074628 39194470 41161760 44793680 47593285 52131520 57626464 62711152 66630599 72033080 76149256 78388940 82323520 89587360 95186570 115252928 125422304 133261198 144066160 152298512 156777880 179174720 190373140 250844608 266522396 288132320 304597024 313555760 333152995 380746280 533044792 576264640 609194048 627111520 666305990 761492560 1066089584 1254223040 1332611980 1522985120 2132179168 2665223960 3045970240 4264358336 5330447920 10660895840 21321791680
- Sum of all divisors σ(n): 63298791360
- Sum of proper divisors (its aliquot sum) s(n): 41976999680
- 21321791680 is an abundant number, because the sum of its proper divisors (41976999680) is greater than itself. Its abundance is 20655208000
Bases of 21321791680
- Binary: 100111101101110000010111000110000002
- Hexadecimal: 0x4F6E0B8C0
- Base-36: 9SMFZR4
Squares and roots of 21321791680
- 21321791680 squared (213217916802) is 454618800445317222400
- 21321791680 cubed (213217916803) is 9693287356906545047529029632000
-
The
square root of 21321791680 is 146019.8331734427 -
The
cube root of 21321791680 is 2772.9448487113
Scales and comparisons
How big is 21321791680?- 21,321,791,680 seconds is equal to 677 years, 50 weeks, 1 day, 23 hours, 54 minutes, 40 seconds.
-
To count from 1 to 21,321,791,680 would take you about one thousand, three hundred fifty-five 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 21321791680 cubic inches would be around 231.1 feet tall.
Recreational maths with 21321791680
- 21321791680 backwards is 08619712312
- 21321791680 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21321791680's digits is 40
- More coming soon!
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