21461662390
21,461,662,390 is an even composite number composed of six prime numbers multiplied together.
21461662390 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21461662390:
2 × 5 × 72 × 31 × 137 × 10313
(2 × 5 × 7 × 7 × 31 × 137 × 10313)See below for interesting mathematical facts about the number 21461662390 from the Numbermatics database.
Names of 21461662390
- Cardinal: 21461662390 can be written as Twenty-one billion, four hundred sixty-one million, six hundred sixty-two thousand, three hundred ninety.
Scientific notation
- Scientific notation: 2.146166239 × 1010
Factors of 21461662390
Divisors of 21461662390
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 5 7 10 14 31 35 49 62 70 98 137 155 217 245 274 310 434 490 685 959 1085 1370 1519 1918 2170 3038 4247 4795 6713 7595 8494 9590 10313 13426 15190 20626 21235 29729 33565 42470 51565 59458 67130 72191 103130 144382 148645 208103 297290 319703 360955 416206 505337 639406 721910 1010674 1040515 1412881 1598515 2081030 2237921 2526685 2825762 3197030 4475842 5053370 7064405 9890167 11189605 14128810 15665447 19780334 22379210 31330894 43799311 49450835 69231169 78327235 87598622 98901670 138462338 156654470 218996555 306595177 346155845 437993110 613190354 692311690 1532975885 2146166239 3065951770 4292332478 10730831195 21461662390
- Sum of all divisors σ(n): 46730836224
- Sum of proper divisors (its aliquot sum) s(n): 25269173834
- 21461662390 is an abundant number, because the sum of its proper divisors (25269173834) is greater than itself. Its abundance is 3807511444
Bases of 21461662390
- Binary: 100111111110011011011111010101101102
- Hexadecimal: 0x4FF36FAB6
- Base-36: 9UXPWOM
Squares and roots of 21461662390
- 21461662390 squared (214616623902) is 460602952542340512100
- 21461662390 cubed (214616623903) is 9885305063300904251109909919000
-
The
square root of 21461662390 is 146497.9944913923 -
The
cube root of 21461662390 is 2778.9951335181
Scales and comparisons
How big is 21461662390?- 21,461,662,390 seconds is equal to 682 years, 21 weeks, 3 days, 20 hours, 53 minutes, 10 seconds.
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To count from 1 to 21,461,662,390 would take you about one thousand, three hundred sixty-four 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 21461662390 cubic inches would be around 231.6 feet tall.
Recreational maths with 21461662390
- 21461662390 backwards is 09326616412
- The number of decimal digits it has is: 11
- The sum of 21461662390's digits is 40
- More coming soon!
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