21008356830
21,008,356,830 is an even composite number composed of six prime numbers multiplied together.
What does the number 21008356830 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 240 divisors.
21008356830 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21008356830:
2 × 34 × 5 × 31 × 732 × 157
(2 × 3 × 3 × 3 × 3 × 5 × 31 × 73 × 73 × 157)See below for interesting mathematical facts about the number 21008356830 from the Numbermatics database.
Names of 21008356830
- Cardinal: 21008356830 can be written as Twenty-one billion, eight million, three hundred fifty-six thousand, eight hundred thirty.
Scientific notation
- Scientific notation: 2.100835683 × 1010
Factors of 21008356830
Divisors of 21008356830
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 31 45 54 62 73 81 90 93 135 146 155 157 162 186 219 270 279 310 314 365 405 438 465 471 558 657 730 785 810 837 930 942 1095 1314 1395 1413 1570 1674 1971 2190 2263 2355 2511 2790 2826 3285 3942 4185 4239 4526 4710 4867 5022 5329 5913 6570 6789 7065 8370 8478 9734 9855 10658 11315 11461 11826 12555 12717 13578 14130 14601 15987 19710 20367 21195 22630 22922 24335 25110 25434 26645 29202 29565 31974 33945 34383 40734 42390 43803 47961 48670 53290 57305 59130 61101 63585 67890 68766 73005 79935 87606 95922 101835 103149 114610 122202 127170 131409 143883 146010 159870 165199 171915 183303 203670 206298 219015 239805 262818 287766 305505 309447 330398 343830 355291 366606 394227 431649 438030 479610 495597 515745 611010 618894 657045 710582 719415 788454 825995 836653 863298 916515 928341 991194 1031490 1065873 1314090 1438830 1486791 1547235 1651990 1673306 1776455 1833030 1856682 1971135 2131746 2158245 2477985 2509959 2973582 3094470 3197619 3552910 3942270 4183265 4316490 4460373 4641705 4955970 5019918 5329365 6395238 7433955 7529877 8366530 8920746 9283410 9592857 10658730 12549795 13381119 14867910 15059754 15988095 19185714 22301865 22589631 25099590 25936243 26762238 28778571 31976190 37649385 44603730 45179262 47964285 51872486 57557142 66905595 67768893 75298770 77808729 95928570 112948155 129681215 133811190 135537786 143892855 155617458 225896310 233426187 259362430 287785710 338844465 389043645 466852374 677688930 700278561 778087290 1167130935 1400557122 2100835683 2334261870 3501392805 4201671366 7002785610 10504178415 21008356830
- Sum of all divisors σ(n): 59497663104
- Sum of proper divisors (its aliquot sum) s(n): 38489306274
- 21008356830 is an abundant number, because the sum of its proper divisors (38489306274) is greater than itself. Its abundance is 17480949444
Bases of 21008356830
- Binary: 100111001000011001000010101110111102
- Hexadecimal: 0x4E43215DE
- Base-36: 9NFTZVI
Squares and roots of 21008356830
- 21008356830 squared (210083568302) is 441351056696607648900
- 21008356830 cubed (210083568303) is 9272060486379894538598556987000
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The
square root of 21008356830 is 144942.5983967447 -
The
cube root of 21008356830 is 2759.2900938841
Scales and comparisons
How big is 21008356830?- 21,008,356,830 seconds is equal to 668 years, 6 hours, 40 minutes, 30 seconds.
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To count from 1 to 21,008,356,830 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 21008356830 cubic inches would be around 229.9 feet tall.
Recreational maths with 21008356830
- 21008356830 backwards is 03865380012
- The number of decimal digits it has is: 11
- The sum of 21008356830's digits is 36
- More coming soon!
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