21018759120
21,018,759,120 is an even composite number composed of six prime numbers multiplied together.
21018759120 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 21018759120:
24 × 33 × 5 × 19 × 673 × 761
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 19 × 673 × 761)See below for interesting mathematical facts about the number 21018759120 from the Numbermatics database.
Names of 21018759120
- Cardinal: 21018759120 can be written as Twenty-one billion, eighteen million, seven hundred fifty-nine thousand, one hundred twenty.
Scientific notation
- Scientific notation: 2.101875912 × 1010
Factors of 21018759120
Divisors of 21018759120
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 27 30 36 38 40 45 48 54 57 60 72 76 80 90 95 108 114 120 135 144 152 171 180 190 216 228 240 270 285 304 342 360 380 432 456 513 540 570 673 684 720 760 761 855 912 1026 1080 1140 1346 1368 1520 1522 1710 2019 2052 2160 2280 2283 2565 2692 2736 3044 3365 3420 3805 4038 4104 4560 4566 5130 5384 6057 6088 6730 6840 6849 7610 8076 8208 9132 10095 10260 10768 11415 12114 12176 12787 13460 13680 13698 14459 15220 16152 18171 18264 20190 20520 20547 22830 24228 25574 26920 27396 28918 30285 30440 32304 34245 36342 36528 38361 40380 41040 41094 43377 45660 48456 51148 53840 54792 57836 60570 60880 63935 68490 72295 72684 76722 80760 82188 86754 90855 91320 96912 102296 102735 109584 115083 115672 121140 127870 130131 136980 144590 145368 153444 161520 164376 173508 181710 182640 191805 204592 205470 216885 230166 231344 242280 255740 260262 273960 289180 290736 306888 328752 345249 347016 363420 383610 390393 410940 433770 460332 484560 511480 512153 520524 547920 575415 578360 613776 650655 690498 694032 726840 767220 780786 821880 867540 920664 1022960 1024306 1041048 1150830 1156720 1301310 1380996 1453680 1534440 1536459 1561572 1643760 1726245 1735080 1841328 1951965 2048612 2082096 2301660 2560765 2602620 2761992 3068880 3072918 3123144 3452490 3470160 3903930 4097224 4603320 4609377 5121530 5205240 5523984 6145836 6246288 6904980 7682295 7807860 8194448 9206640 9218754 9730907 10243060 10410480 12291672 13809960 13828131 15364590 15615720 18437508 19461814 20486120 23046885 24583344 27619920 27656262 29192721 30729180 31231440 36875016 38923628 40972240 46093770 48654535 55312524 58385442 61458360 69140655 73750032 77847256 87578163 92187540 97309070 110625048 116770884 122916720 138281310 145963605 155694512 175156326 184375080 194618140 221250096 233541768 262734489 276562620 291927210 350312652 368750160 389236280 437890815 467083536 525468978 553125240 583854420 700625304 778472560 875781630 1050937956 1106250480 1167708840 1313672445 1401250608 1751563260 2101875912 2335417680 2627344890 3503126520 4203751824 5254689780 7006253040 10509379560 21018759120
- Sum of all divisors σ(n): 76421894400
- Sum of proper divisors (its aliquot sum) s(n): 55403135280
- 21018759120 is an abundant number, because the sum of its proper divisors (55403135280) is greater than itself. Its abundance is 34384376160
Bases of 21018759120
- Binary: 100111001001101000011001111110100002
- Hexadecimal: 0x4E4D0CFD0
- Base-36: 9NM0YC0
Squares and roots of 21018759120
- 21018759120 squared (210187591202) is 441788234944583174400
- 21018759120 cubed (210187591203) is 9285840492350160291518550528000
-
The
square root of 21018759120 is 144978.4781269275 -
The
cube root of 21018759120 is 2759.7454396601
Scales and comparisons
How big is 21018759120?- 21,018,759,120 seconds is equal to 668 years, 17 weeks, 1 day, 16 hours, 12 minutes.
-
To count from 1 to 21,018,759,120 would take you about one thousand, three hundred thirty-six 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 21018759120 cubic inches would be around 230 feet tall.
Recreational maths with 21018759120
- 21018759120 backwards is 02195781012
- 21018759120 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21018759120's digits is 36
- More coming soon!
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