21208357080
21,208,357,080 is an even composite number composed of seven prime numbers multiplied together.
21208357080 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 21208357080:
23 × 32 × 5 × 19 × 37 × 47 × 1783
(2 × 2 × 2 × 3 × 3 × 5 × 19 × 37 × 47 × 1783)See below for interesting mathematical facts about the number 21208357080 from the Numbermatics database.
Names of 21208357080
- Cardinal: 21208357080 can be written as Twenty-one billion, two hundred eight million, three hundred fifty-seven thousand and eighty.
Scientific notation
- Scientific notation: 2.120835708 × 1010
Factors of 21208357080
Divisors of 21208357080
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 19 20 24 30 36 37 38 40 45 47 57 60 72 74 76 90 94 95 111 114 120 141 148 152 171 180 185 188 190 222 228 235 282 285 296 333 342 360 370 376 380 423 444 456 470 555 564 570 666 684 703 705 740 760 846 855 888 893 940 1110 1128 1140 1332 1368 1406 1410 1480 1665 1692 1710 1739 1783 1786 1880 2109 2115 2220 2280 2664 2679 2812 2820 3330 3384 3420 3478 3515 3566 3572 4218 4230 4440 4465 5217 5349 5358 5624 5640 6327 6660 6840 6956 7030 7132 7144 8037 8436 8460 8695 8915 8930 10434 10545 10698 10716 12654 13320 13395 13912 14060 14264 15651 16047 16074 16872 16920 17390 17830 17860 20868 21090 21396 21432 25308 26085 26745 26790 28120 31302 31635 32094 32148 33041 33877 34780 35660 35720 40185 41736 42180 42792 50616 52170 53490 53580 62604 63270 64188 64296 65971 66082 67754 69560 71320 78255 80235 80370 83801 84360 99123 101631 104340 106980 107160 125208 126540 128376 131942 132164 135508 156510 160470 160740 165205 167602 169385 197913 198246 203262 208680 213960 251403 253080 263884 264328 271016 297369 304893 313020 320940 321480 329855 330410 335204 338770 395826 396492 406524 419005 495615 502806 508155 527768 593739 594738 609786 626040 641880 659710 660820 670408 677540 754209 791652 792984 813048 838010 989565 991230 1005612 1016310 1187478 1189476 1219572 1253449 1257015 1319420 1321640 1355080 1486845 1508418 1524465 1583304 1592219 1676020 1979130 1982460 2011224 2032620 2374956 2378952 2439144 2506898 2514030 2638840 2968695 2973690 3016836 3048930 3100637 3184438 3352040 3760347 3771045 3958260 3964920 4065240 4749912 4776657 5013796 5028060 5937390 5947380 6033672 6097860 6201274 6267245 6368876 7520694 7542090 7916520 7961095 9301911 9553314 10027592 10056120 11281041 11874780 11894760 12195720 12402548 12534490 12737752 14329971 15041388 15084180 15503185 15922190 18603822 18801735 19106628 22562082 23749560 23883285 24805096 25068980 27905733 28659942 30082776 30168360 31006370 31844380 37207644 37603470 38213256 45124164 46509555 47766570 50137960 55811466 56405205 57319884 58912103 62012740 63688760 71649855 74415288 75206940 90248328 93019110 95533140 111622932 112810410 114639768 117824206 124025480 139528665 143299710 150413880 176736309 186038220 191066280 223245864 225620820 235648412 279057330 286599420 294560515 353472618 372076440 451241640 471296824 530208927 558114660 573198840 589121030 706945236 883681545 1060417854 1116229320 1178242060 1413890472 1767363090 2120835708 2356484120 2651044635 3534726180 4241671416 5302089270 7069452360 10604178540 21208357080
- Sum of all divisors σ(n): 76143974400
- Sum of proper divisors (its aliquot sum) s(n): 54935617320
- 21208357080 is an abundant number, because the sum of its proper divisors (54935617320) is greater than itself. Its abundance is 33727260240
Bases of 21208357080
- Binary: 100111100000001110111011000110110002
- Hexadecimal: 0x4F01DD8D8
- Base-36: 9QQWP20
Squares and roots of 21208357080
- 21208357080 squared (212083570802) is 449794410032786126400
- 21208357080 cubed (212083570803) is 9539400460563262675961214912000
-
The
square root of 21208357080 is 145630.8932884777 -
The
cube root of 21208357080 is 2768.0186311215
Scales and comparisons
How big is 21208357080?- 21,208,357,080 seconds is equal to 674 years, 18 weeks, 5 days, 2 hours, 18 minutes.
-
To count from 1 to 21,208,357,080 would take you about one thousand, three hundred forty-eight 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 21208357080 cubic inches would be around 230.7 feet tall.
Recreational maths with 21208357080
- 21208357080 backwards is 08075380212
- 21208357080 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21208357080's digits is 36
- More coming soon!
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