21021207750
21,021,207,750 is an even composite number composed of six prime numbers multiplied together.
21021207750 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21021207750:
2 × 33 × 53 × 37 × 73 × 1153
(2 × 3 × 3 × 3 × 5 × 5 × 5 × 37 × 73 × 1153)See below for interesting mathematical facts about the number 21021207750 from the Numbermatics database.
Names of 21021207750
- Cardinal: 21021207750 can be written as Twenty-one billion, twenty-one million, two hundred seven thousand, seven hundred fifty.
Scientific notation
- Scientific notation: 2.102120775 × 1010
Factors of 21021207750
Divisors of 21021207750
- Number of divisors d(n): 256
-
Complete list of divisors:
1 2 3 5 6 9 10 15 18 25 27 30 37 45 50 54 73 74 75 90 111 125 135 146 150 185 219 222 225 250 270 333 365 370 375 438 450 555 657 666 675 730 750 925 999 1095 1110 1125 1153 1314 1350 1665 1825 1850 1971 1998 2190 2250 2306 2701 2775 3285 3330 3375 3459 3650 3942 4625 4995 5402 5475 5550 5765 6570 6750 6918 8103 8325 9125 9250 9855 9990 10377 10950 11530 13505 13875 16206 16425 16650 17295 18250 19710 20754 24309 24975 27010 27375 27750 28825 31131 32850 34590 40515 41625 42661 48618 49275 49950 51885 54750 57650 62262 67525 72927 81030 82125 83250 84169 85322 86475 98550 103770 121545 124875 127983 135050 144125 145854 155655 164250 168338 172950 202575 213305 243090 246375 249750 252507 255966 259425 288250 311310 337625 364635 383949 405150 420845 426610 432375 492750 505014 518850 607725 639915 675250 729270 757521 767898 778275 841690 864750 1012875 1066525 1151847 1215450 1262535 1279830 1297125 1515042 1556550 1823175 1919745 2025750 2104225 2133050 2272563 2303694 2525070 2594250 3038625 3114253 3199575 3646350 3787605 3839490 3891375 4208450 4545126 5332625 5759235 6077250 6228506 6312675 6399150 7575210 7782750 9115875 9342759 9598725 10521125 10665250 11362815 11518470 12625350 15571265 15997875 18231750 18685518 18938025 19197450 21042250 22725630 28028277 28796175 31142530 31563375 31995750 37876050 46713795 47993625 56056554 56814075 57592350 63126750 77856325 84084831 93427590 94690125 95987250 113628150 140141385 143980875 155712650 168169662 189380250 233568975 280282770 284070375 287961750 389281625 420424155 467137950 568140750 700706925 778563250 840848310 1167844875 1401413850 2102120775 2335689750 3503534625 4204241550 7007069250 10510603875 21021207750
- Sum of all divisors σ(n): 60747298560
- Sum of proper divisors (its aliquot sum) s(n): 39726090810
- 21021207750 is an abundant number, because the sum of its proper divisors (39726090810) is greater than itself. Its abundance is 18704883060
Bases of 21021207750
- Binary: 100111001001111011000101100110001102
- Hexadecimal: 0x4E4F62CC6
- Base-36: 9NNHFPI
Squares and roots of 21021207750
- 21021207750 squared (210212077502) is 441891175268660062500
- 21021207750 cubed (210212077503) is 9289086198214165237940484375000
-
The
square root of 21021207750 is 144986.9226861513 -
The
cube root of 21021207750 is 2759.8526031871
Scales and comparisons
How big is 21021207750?- 21,021,207,750 seconds is equal to 668 years, 21 weeks, 2 days, 22 minutes, 30 seconds.
-
To count from 1 to 21,021,207,750 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 21021207750 cubic inches would be around 230 feet tall.
Recreational maths with 21021207750
- 21021207750 backwards is 05770212012
- 21021207750 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21021207750's digits is 27
- More coming soon!
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