21055723520
21,055,723,520 is an even composite number composed of four prime numbers multiplied together.
21055723520 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21055723520:
211 × 5 × 132 × 233
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 13 × 23 × 23 × 23)See below for interesting mathematical facts about the number 21055723520 from the Numbermatics database.
Names of 21055723520
- Cardinal: 21055723520 can be written as Twenty-one billion, fifty-five million, seven hundred twenty-three thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.105572352 × 1010
Factors of 21055723520
Divisors of 21055723520
- Number of divisors d(n): 288
-
Complete list of divisors:
1 2 4 5 8 10 13 16 20 23 26 32 40 46 52 64 65 80 92 104 115 128 130 160 169 184 208 230 256 260 299 320 338 368 416 460 512 520 529 598 640 676 736 832 845 920 1024 1040 1058 1196 1280 1352 1472 1495 1664 1690 1840 2048 2080 2116 2392 2560 2645 2704 2944 2990 3328 3380 3680 3887 4160 4232 4784 5120 5290 5408 5888 5980 6656 6760 6877 7360 7774 8320 8464 9568 10240 10580 10816 11776 11960 12167 13312 13520 13754 14720 15548 16640 16928 19136 19435 21160 21632 23552 23920 24334 26624 27040 27508 29440 31096 33280 33856 34385 38272 38870 42320 43264 47104 47840 48668 54080 55016 58880 60835 62192 66560 67712 68770 76544 77740 84640 86528 89401 95680 97336 108160 110032 117760 121670 124384 133120 135424 137540 153088 155480 158171 169280 173056 178802 191360 194672 216320 220064 235520 243340 248768 270848 275080 306176 310960 316342 338560 346112 357604 382720 389344 432640 440128 447005 486680 497536 541696 550160 612352 621920 632684 677120 715208 765440 778688 790855 865280 880256 894010 973360 995072 1083392 1100320 1243840 1265368 1354240 1430416 1530880 1557376 1581710 1730560 1760512 1788020 1946720 1990144 2056223 2200640 2487680 2530736 2708480 2860832 3061760 3114752 3163420 3521024 3576040 3893440 3980288 4112446 4401280 4975360 5061472 5416960 5721664 6229504 6326840 7042048 7152080 7786880 7960576 8224892 8802560 9950720 10122944 10281115 11443328 12459008 12653680 14084096 14304160 15573760 16449784 17605120 19901440 20245888 20562230 22886656 24918016 25307360 28608320 31147520 32899568 35210240 39802880 40491776 41124460 45773312 50614720 57216640 62295040 65799136 70420480 80983552 82248920 91546624 101229440 114433280 124590080 131598272 161967104 164497840 183093248 202458880 228866560 263196544 323934208 328995680 404917760 457733120 526393088 657991360 809835520 915466240 1052786176 1315982720 1619671040 2105572352 2631965440 4211144704 5263930880 10527861760 21055723520
- Sum of all divisors σ(n): 57193063200
- Sum of proper divisors (its aliquot sum) s(n): 36137339680
- 21055723520 is an abundant number, because the sum of its proper divisors (36137339680) is greater than itself. Its abundance is 15081616160
Bases of 21055723520
- Binary: 100111001110000010011011000000000002
- Hexadecimal: 0x4E704D800
- Base-36: 9O8188W
Squares and roots of 21055723520
- 21055723520 squared (210557235202) is 443343492950681190400
- 21055723520 cubed (210557235203) is 9334918011960612140726878208000
-
The
square root of 21055723520 is 145105.9044973705 -
The
cube root of 21055723520 is 2761.3622904483
Scales and comparisons
How big is 21055723520?- 21,055,723,520 seconds is equal to 669 years, 26 weeks, 2 days, 12 hours, 5 minutes, 20 seconds.
-
To count from 1 to 21,055,723,520 would take you about one thousand, three hundred thirty-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 21055723520 cubic inches would be around 230.1 feet tall.
Recreational maths with 21055723520
- 21055723520 backwards is 02532755012
- 21055723520 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21055723520's digits is 32
- More coming soon!
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