21372380820
21,372,380,820 is an even composite number composed of six prime numbers multiplied together.
21372380820 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21372380820:
22 × 33 × 5 × 7 × 732 × 1061
(2 × 2 × 3 × 3 × 3 × 5 × 7 × 73 × 73 × 1061)See below for interesting mathematical facts about the number 21372380820 from the Numbermatics database.
Names of 21372380820
- Cardinal: 21372380820 can be written as Twenty-one billion, three hundred seventy-two million, three hundred eighty thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 2.137238082 × 1010
Factors of 21372380820
Divisors of 21372380820
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 73 84 90 105 108 126 135 140 146 180 189 210 219 252 270 292 315 365 378 420 438 511 540 630 657 730 756 876 945 1022 1061 1095 1260 1314 1460 1533 1890 1971 2044 2122 2190 2555 2628 3066 3183 3285 3780 3942 4244 4380 4599 5110 5305 5329 6132 6366 6570 7427 7665 7884 9198 9549 9855 10220 10610 10658 12732 13140 13797 14854 15330 15915 15987 18396 19098 19710 21220 21316 22281 22995 26645 27594 28647 29708 30660 31830 31974 37135 37303 38196 39420 44562 45990 47745 47961 53290 55188 57294 63660 63948 66843 68985 74270 74606 77453 79935 89124 91980 95490 95922 106580 111405 111909 114588 133686 137970 143235 143883 148540 149212 154906 159870 186515 190980 191844 200529 222810 223818 232359 239805 267372 275940 286470 287766 309812 319740 334215 335727 373030 387265 401058 445620 447636 464718 479610 542171 559545 572940 575532 668430 671454 697077 719415 746060 774530 802116 929436 959220 1002645 1007181 1084342 1119090 1161795 1336860 1342908 1394154 1438830 1549060 1626513 1678635 2005290 2014362 2091231 2168684 2238180 2323590 2710855 2788308 2877660 3253026 3357270 3485385 4010580 4028724 4182462 4647180 4879539 5035905 5421710 5654069 6506052 6714540 6970770 8132565 8364924 9759078 10071810 10456155 10843420 11308138 13941540 14638617 16265130 16962207 19518156 20143620 20912310 22616276 24397695 28270345 29277234 32530260 33924414 39578483 41824620 48795390 50886621 56540690 58554468 67848828 73193085 79156966 84811035 97590780 101773242 113081380 118735449 146386170 152659863 158313932 169622070 197892415 203546484 237470898 254433105 292772340 305319726 339244140 356206347 395784830 474941796 508866210 593677245 610639452 712412694 763299315 791569660 1017732420 1068619041 1187354490 1424825388 1526598630 1781031735 2137238082 2374708980 3053197260 3562063470 4274476164 5343095205 7124126940 10686190410 21372380820
- Sum of all divisors σ(n): 77118531840
- Sum of proper divisors (its aliquot sum) s(n): 55746151020
- 21372380820 is an abundant number, because the sum of its proper divisors (55746151020) is greater than itself. Its abundance is 34373770200
Bases of 21372380820
- Binary: 100111110011110010010100110100101002
- Hexadecimal: 0x4F9E4A694
- Base-36: 9TGKAL0
Squares and roots of 21372380820
- 21372380820 squared (213723808202) is 456778661915103872400
- 21372380820 cubed (213723808203) is 9762447512899630470789487368000
-
The
square root of 21372380820 is 146192.9574911187 -
The
cube root of 21372380820 is 2775.1361920009
Scales and comparisons
How big is 21372380820?- 21,372,380,820 seconds is equal to 679 years, 29 weeks, 6 days, 12 hours, 27 minutes.
-
To count from 1 to 21,372,380,820 would take you about one thousand, three hundred fifty-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 21372380820 cubic inches would be around 231.3 feet tall.
Recreational maths with 21372380820
- 21372380820 backwards is 02808327312
- 21372380820 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21372380820's digits is 36
- More coming soon!
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